My car radio wont turn on

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My car radio wont turn on

The car will be completely turned off, but the radio will still be on and playing. I left it alone for a little while thinking it would turn off, like headlights take a few seconds, but never did. I removed the fuse as a temporary fix. The car itself is salvaged, but I have never had a single issue.

Does the interior lights turn on when you open the door to exit?

Why would an aftermarket car stereo not work in the car?

I know its a differant car, but my Caddy has a switch in the door latch that sticks. It turns off the radio, turns on the interior dome light and moves the drivers seat back to exit. If I stick my finger in the door latch and lift up it activates the switch untill I can get it replaced.

They do turn on but I keep the switch for the dome light off, but other than that, yes all the lights would turn on if I open the door but they turn off after as normal. Only the radio stays on. I turned up the radio to make sure it was still playing after locking the car and everything and music was still playing. Was this issue ever fixed?

I'm currently having the same issue, lights will turn off, but radio stays on. Not too sure what to do, other than bring it into the shop, but until then, I don't want to drain my battery. Howard answered 5 years ago.

If you open the driver's door, you will see three bolts in the door jam on the body of the car. There may be black caps on these bolts. These are what appears to be the grounding for the body of the car. Tighten down these bolts and the grounding issue should be fixed and the radio should work normally.

my car radio wont turn on

Sounds crazy, but it seems to be the problem and the fix. William answered 4 years ago. I had a similar issue while I was using the car charger to recharge my Mobile device battery pack. Soon as I take the item out of the cigarette lighter the radio turned off Brandon answered 3 years ago. I am having the same issue with the radio staying on.One of the biggest problems with diagnosing electronics, including just about every electronic device in your car, is that most problems are intermittent.

Intermittent problems can be impossible to nail down. The unfortunate fact is that if your car radio is suddenly doesn't workyou may be in for an expensive repair bill, or even have to replace the unit altogether.

If you're lucky, you might even be able to fix it yourself. While it is possible for a car radio to fail altogether, there are a lot of internal and external issues that can be fixed well short of total replacement. Some of the most common issues include a blown fuse, bad or damaged wiring, and anti-theft modes that are often triggered when the battery dies. In order to track down the reason that your car radio won't turn on, you'll want to tackle each of these potential issues one at a time.

Some head units have a security feature that prevents them from operating after power has been interrupted. The idea is that the head unit will be rendered useless if it is stolen, which is supposed to deter the theft of these units.

In other cases, the head unit will appear to be totally dead, and you will have to enter a code or perform another manufacturer-specified procedure to get it working again. You can test an automotive fuse by visually inspecting it, or you can use a multimeter or test light to check for power on both sides of the fuse. If you have access to a multimeter or test like, that's the better way to go since it is possible for a fuse to fail in such a way that it is difficult to tell one way or the other simply by looking at it.

Some head units have built-in fuses, typically located on the back side, and some installations have additional in-line fuses located somewhere on the power wire or wires.

Car radio inspection at your home or office.

Of course, a blown fuse is often indicative of another issue, so you should never replace a blown fuse with one of a larger amperage. Before you progress any further into the diagnostic procedure, you will have to remove the head unit to gain access to the wiring. With that in mind, you may want to check to see if the pigtail connector is seated properly in the head unit. If there are any doubts about the pigtail, you can remove it and replace it, ensuring that it seats properly. If your particular installation has an adapter that connects between the head unit and the factory wiring, then you can also unplug the entire thing and reconnect it to ensure that everything is making good electrical contact, and then attempt to power up the radio again.

Radio stays on after car is completely turned off.

In some cases, with certain aftermarket head units and adapters, you may also find that unplugging the head unit and adapter for a time will fix the issue. In these cases, you may benefit from leaving everything unplugged for fifteen to twenty minutes, reconnecting, and then checking the operation of the unit again.

If the fuses are good, and the connections are good, then the next step is to check for power at the radio itself. Most car radios have two power wires—one that is always hot, which provides power to the memory, and one that is only hot when you turn on the ignition key. If these power wires are reversed, the radio will fail to work properly or at all.

In the event that you find no power at the head unit, but there is power at the fuse block, you are probably dealing with a broken wire, so you will have to trace the power wire back to the source. Poor head unit grounds are more likely to cause issues like ground loops than total failures, but if everything else checks out, you will want to verify that your head unit has a good ground before you condemn the unit.

You can bench test the unit by connecting the power and ground leads directly to 12V positive and negative, if you like, but if the power and ground both showed good in the vehicle, you are unlikely to find a different result with the unit removed.

Tweet Share Email. More from Lifewire.If you are used to driving with your music playing, things will get difficult when your radio stops to work. Radio entertainment might not be as necessary as such, but it is good for safety and just keeping the mood as you travel.

It is also great for learning what is going around you. Is your car radio not working? There are so many reasons why your radio is not working. If you recently upgraded your radio audio system, then the problem might be with the head unit, the speakers or the fuses. For you to get these reasons in details, we are going to discuss each of them in details. The operation of a radio starts from the power supply and ends in the output of sound by the speakers.

A radio pulls power from the alternator which is supplied by the battery. A wiring system is established to connect the alternator to the radio and the radio to the speakers. The radio will also receive signals from the antenna.

Radios also require fuses to get protected from power surges or power spikes. Some aftermarket radios will also work hand in hand with amplifiers and other components. Such systems will require more complex installation techniques. With a failure of these components, it means the radio signal output will also be affected. That is why the radio failing to work might not be directly due to the radio but also the components the radio is wired with.

Did you upgrade your car audio system? Your radio may not be working because the protection mode has been turned on. Some aftermarket systems come with a special security feature that protects the system from theft. It works in such a way that when there is a power interruption, the head unit by default goes off and is rendered useless. Check whether your upgraded system has this feature. If your car system happens to have it, then you may need to perform a special procedure for you to get it back to work.

If you cannot access it, then you may need to contact the manufacturers for guidance. Related Article: Why did my Car Speakers stop working. Another reason why your car radio is not working is because it does not receive any power supply. There are so many reasons why this is so, here are some common ones.

my car radio wont turn on

Wiring can be challenging especially for an upgraded system. A loose wire somewhere will mean that the radio will not be working at all. You will need to check for this connection when your radio is dead.

The best way to identify if the wiring has problems is using a voltage meter. Start with testing the ground wire blackaccessory wire red and constant yellow. If the wiring is good, then the voltmeter should read 12 volts or the voltage equal to your source. Check for loose connection points or points that have been cut or peeled off. Ground wires can be disturbing if they are not correctly grounded. This is may be the problem with your radio if it does not turn on completely.

The main reason why it is not working is that these blown fuses do not let the power to the radio, amps or the speakers. You will need to locate the blown fuses by using a voltmeter or consult a mechanic or car audio system diagnosis professional.

To find whether a fuse works or is blown, connect the multimeter across the fuse.After they installed it, my car radio would not turn on at all. The clock on the radio interface had been reset to when they disconnected the battery, but I could not reset the clock to the appropriate time after installation. After doing some research, I came up with two scenarios to look into:. I checked the fuse, and it worked fine. The only thing the interface indicates is the time, which is incorrect.

Are there any hypotheses as to why my car radio is now inoperable?

my car radio wont turn on

And are there any suggested solutions for resolving this? Try turning the ignition key to run position so the dash lights come on for ten minutes to see the radio recognizes the VIN so it works again. It should have a procedure for bringing your radio back to life. The worst they can do is say they do not have a clue. They also might know what to do. The spark that occurs when a new battery is installed can cause a power surge that affects battery powered items like radio, ecu and bcm.

There may be a logic lock of the music radio requiring the battery to be disconnected overnight to clear. The proper way to replace a battery on a modern car is to have a secondary power source hooked to the vehicle while the battery is removed. The reconnect the battery in the AM. This is sort of like rebooting your computer. Might work, worth a shot at least. Try to turn everything off in the car that you can think of before.

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AC, turn signals, lights, blower fans, etc. Disconnect and reconnect the battery using the battery negative post, not the positive. If proper battery replacement practices were followed then the radio, clock, or anything else on the car would never have lost battery power. There are a few rules for replacing a battery:. Apply 12 volt power to the vehicle either through the data link connector under the dash or by jumpering wires to a battery powered circuit at the fusebox or other connector.

Always verify that all electrical devices and systems operate properly before releasing the car to the customer. If I remember correctly, the radio is part of the vehicle communications system. Frankly my first step would be to access the body control module and check for fault codes and data stream there. I had to disconnect the battery on my Toyota Sienna because the terminals showed a lot of corrosion.

I purchased the device that plugs into the 12 volt socket and then disconnected the terminals.

my car radio wont turn on

The first time, I remembered to turn the key to the accessory position so that the 12 volt socket would be connected to the electrical system of the car.

The only problem that occurred was that the clock had lost time and had to be reset. The second time I had to clean the terminals, I did the same procedure, but I forgot to turn the key to the accessory position, so no current was fed to the electrical system. However, no harm was done.It's easy to get frustrated when you get in your car and the engine won't turn over. Don't worry quite yet. If you're at home, there are three things you can test that will tell you what's wrong—and you might have an inexpensive repair on your hands.

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The most likely problem is a dead or drained battery. If that's good, then your battery cables might be dirty or your starter may be going bad. Rule these things out before you spend any time troubleshooting other possibilities. Many batteries lose their charge or go dead because of an outside power drain.

It may have been something as simple as leaving the headlights or a dome light on. Either of these can drain your battery overnight. If you have a battery tester that can measure cranking amps, test your battery to see if it's weak.

If the tester shows a weak battery, you'll have to replace it. Drive or run your car for about an hour or so, turn it off, and then restart it. If it starts, the battery is good. If it doesn't and you need to jumpstart it again, drive it to the nearest automotive store and buy a new battery. Another thing that can stop your car from turning over is a dirty starter cable. As such, it is also very susceptible to corrosion.

If your starter cable becomes corroded, it can be cleaned rather easily. Remove each end of the cables—one end is attached to the battery, and the other is attached to the starter—and clean the connections with a wire brush. Don't forget to also clean the battery posts at the same time. Unfortunately, the same fate can befall your ground cables.

A corroded or poorly connected ground cable can also prevent the car from starting. Clean ground wires and connections in the same manner.

It is also possible that you have a bad starter. A starter can go bad slowly over time and there are some things that can indicate when it is ready to go. For instance, you may notice that it seems like the engine starts slower than normal in the morning or you may be able to hear the starter turning more slowly than usual when you turn the key.

You may also find that one day your car fails to start, then starts perfectly for a few days in a row. Then it fails again. If you checked the three big culprits and they didn't work, keep your cool. There are only a few parts in your starting systemand a little troubleshooting can help you figure out why it's not working. Sometimes your engine does turn over but will not actually fire.Menu Menu.

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Search Everywhere Threads This forum This thread. Search titles only. Search Advanced search…. Everywhere Threads This forum This thread. Search Advanced…. Log in. Trending Search forums. What's new. New posts Latest activity. Why would an aftermarket car stereo not work in the car? Thread starter Spoooon Start date Oct 13, Sidebar Sidebar. Forums Social The Garage. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.

Status Not open for further replies. Previous Next. Spoooon Lifer. Mar 3, 11, I double checked that I have the correct wiring harness and that all of the wires are connected correctly. The factory stereo works with no problems.

I was trying to put in an old Alpine but I was not sure that it still worked, and because I could not get it to work in her car, I thought I would try a new one. And I am still having problems. This is an old thread with new responses. I am moving it from OT to The Garage. Last edited by a moderator: Jan 14, Colt45 Lifer. Apr 18, 19, 0 0. K Lifer. Aug 21, 32, 5, Check the fuses? Apr 25, 1, 0 0.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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And it also loses preferences volume, radio stations, etc. My Solution So first i tried to reverse the wires, red goes to yellow place and yellow to red, didn't work, no difference at all, unit only works when car is on.

Now what i did is connect both red and yellow wires on the adapter to the red wire that comes out of the car, this effectively makes both yellow and red wire connected to the unit always at 12 volts. That seemed like it fixed the problem. Question So my question is, is this a good solution, or did a do something stupid and tomorrow when i go to my car i will find it not starting because my battery is dead? Yellow wire labeled "battery" should have constant 12 volts, whether the car is on or off.

The "bulb with a wire in the middle" is probably a fuse. Any direct connection to the battery will normally be fused. If you get 0v when the car is off, this is probably incorrectly hooked up to the ACC Accessory power instead of constant 12v.

If it always has 12v, then again something is not hooked up right. Why did it not work when you switched the wires? I can't say exactly, but to directly answer the question: yes it's entirely possible for you to leave your radio on and drain the battery.

However, if you really want to be able to listen to it with the car off then you would have to do something like what you have done, and splice the always on 12v to both connections on the stereo. The only thing I might change is to make sure that always on connection has a fuse. If the line is not fused already, or there is no fuse in the panel I would suggest getting a cheap inline fuse-holder to splice into the wire.

Always fuse hot connections as close as possible to the battery or other DC source. Also if you are splicing hot connections together be aware you may be pulling more amps than was originally intended for the wire. Of the cars that I have personally worked on, none of them had a memory circuit that I would feel comfortable running my head unit off of; they're usually fused at 5 amps sometimes 7. If the manufacturer designed the circuit to handle 5 amps, you risk blowing fuses and burning wires by overloading it.

As for draining the battery, it's entirely possible, but that depends on the head unit, and how much power it draws when turned off. If you absolutely must set yours up this way I would notrunning a wire from the battery to the head unit with a separate fuse inline is a safe bet. Your factory wiring was not designed to do what you suggest. Quite straight forward. Car manufacturers quite often reverse permanent and Acc locations on ISO power plug.

They also use them for different functions on later vehicles, so you may find Acc wire is replaced by CAN network connection. Earth wire is always in some position. As for the stereo not staying on when engine is off: This may be how Fiat intended. Check the Acc with multimeter to determine when 12v Acc is present.

What to Do When Your Car Radio Suddenly Stops Working

If not ignition switched with "hold" until key removed you will needcto locate a better switched 12v from fuse box.

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