Thread: car stereo help

All of a sudden no sound at all in my system. Car is running works fine, shut car down and come back later, no sound.

Unit is a pioneer avic F90BT and seems to be working fine otherwise. Amp is an alpine PDX5 running all 5 channels. Amp is on and all lit up. Any ideas??

did the mute cable short out by chance?

also, what audio source are you using?

have you tried ipod, cd, radio?

Lights are on but nobody home?
intermitant cutting in and out or just dead?

just dead, no sound from all sources. any way I can check just the amp? or just the unit?
what's a mute cable?

i plugged a mini headphone to rca from my iphone into one of the amp rca imputs to see if I got at least some sound, a pop hum or something got nothin

i looked at the pin out. doesnt appear you have one. but its a cable that you can wire to a switch, that will mute the audio.

You can get an ipod with a 3.5mm to rca and plug it right into the amp to test it. i would fiddle with the plugs in the back. make sure they are fully plugged in. have you also checked the settings to make sure that the output is set right?

sounds like either the amp has blown or a speaker cable is touching metal somewhere causing a short! the easiest way to find out if its a short is to disconnect 1 speaker at a time but make sure to do it while the unit is switched off. If you have a multi meter then you can also check each speaker! normally the amp will go into protection mode if this happens and you will have a warning lamp on the amplifier itself.

that!s what i did. 3.5 headphone into 2 rca's going into amp inputs. i figure i would at least get some sort of sound. got nothin. amp is lit up like it is working. everything has been running great for almost 2 yrs.

then either the amp is dead, or maybe in protection mode.

or like said above, you have a short

What colour is the square indicator light showing? solid or flashing aswell...
Blue is Normal
Red is Protection mode - caused by voltage drain,dead short on a cable or it's got too hot.
Flashing Red is High Temp cut out.