Stereo not working, stuck at 0

[Bullitt Boy]

Currently having a problem with my stereo where it stops working and I can’t play music. This is around the 3rd time this has happened, the first time I took it to the dealer and they replaced the number 23 fuse on the passenger fuse box which fixed the problem for about 6 months. The second time I changed the fuse myself and it fixed it for 4 months and now it came back and I have replaced the fuse for it to stop working 30 minutes later. I assume it’s an electrical problem or short but have no idea beyond that and appreciate any help or insight

Sponsored

 

[MiamiGT350]

Any modifications to the car, such as an amp or aftermarket stereo components?

 

[Bullitt Boy]

Any modifications to the car, such as an amp or aftermarket stereo components?

Nope, just got the B&O sound system, the car also has been making anew ding noise when starting up and makes different beeps when the reverse sensors are triggered

 

[MiamiGT350]

If you remove the factory amplifier, the car will start playing door chimes, seat belt reminder, etc from the dash speaker instead of the stereo speakers. Given that you seem to be describing this behavior and your volume is stuck at zero, I would suspect the connections between the Sync head unit and your factory amp are amiss.

The issue is likely a bad Sync unit, a bad amp, or the wires in between. A blown fuse would make me suspect poor connection quality, a pinched/frayed wire, or an outright bad module.

I would OBD2 scan for any error codes, "lost connection" codes, or "DSP module missing" errors. Something may appear that will help you diagnose the issue.

You can also try ACM, APIM, etc module resets and self-tests in Forscan.

if you suspect the Sync unit needs to be re-programmed, you can use Syn3Updater and do it yourself.

The factory amp is in the driver's footwell, up and to the left of where the clutch would be. It wouldn't hurt to unplug and re-seat the 3 plug connections to it... I recall they are brown, black, and white plugs.

The APIM sync module is in the dash, so you'll need to disassemble around the radio to access it's outgoing connections to the amp.

Those are my ideas...

 

[IPOGT]

Disconnect your battery, wait 60
Seconds and reconnect.

 

[Bullitt Boy]

If you remove the factory amplifier, the car will start playing door chimes, seat belt reminder, etc from the dash speaker instead of the stereo speakers. Given that you seem to be describing this behavior and your volume is stuck at zero, I would suspect the connections between the Sync head unit and your factory amp are amiss.

The issue is likely a bad Sync unit, a bad amp, or the wires in between. A blown fuse would make me suspect poor connection quality, a pinched/frayed wire, or an outright bad module.

I would OBD2 scan for any error codes, "lost connection" codes, or "DSP module missing" errors. Something may appear that will help you diagnose the issue.

You can also try ACM, APIM, etc module resets and self-tests in Forscan.

if you suspect the Sync unit needs to be re-programmed, you can use Syn3Updater and do it yourself.

The factory amp is in the driver's footwell, up and to the left of where the clutch would be. It wouldn't hurt to unplug and re-seat the 3 plug connections to it... I recall they are brown, black, and white plugs.

The APIM sync module is in the dash, so you'll need to disassemble around the radio to access it's outgoing connections to the amp.

Those are my ideas...

The first part you describe is exactly what was happening, door chimes wise. I ended up pulling the amp fuse and leaving it out for 15 seconds and as soon as I put it back in the stereo immediately came back on. Fingers crossed we’ll see how long it lasts this time but next time I have a problem I might consider taking the car in as I do have the extended warranty at the moment.

 

[Cobra Jet]

Just get under the dash, find the amp at the kick panel and make sure the connectors to it are plugged in securely and nothing is loose…. It’s not that hard. Why take it all the way to the Dealer?

 

[Bullitt Boy]

I’ll try this before taking it in, just thought the problem might be too complex for me to fix as I’m only good with mechanical problems

 

[TonyT930]

Currently having a problem with my stereo where it stops working and I can’t play music. This is around the 3rd time this has happened, the first time I took it to the dealer and they replaced the number 23 fuse on the passenger fuse box which fixed the problem for about 6 months. The second time I changed the fuse myself and it fixed it for 4 months and now it came back and I have replaced the fuse for it to stop working 30 minutes later. I assume it’s an electrical problem or short but have no idea beyond that and appreciate any help or insight

Try a factory reset.

Sponsored