so i deiced to install a after market double din (Pioneer AVH-P4000).everything plays and works but no sound is coming out from the speakers... i think its because the head unit needs to send a signal to the stock amp ? can anyone confirm this? if this is correct, what is the colour of the wire?

thanks in advance!

 

did you hook up the speakers to the aftermarket HU? What is the wattage output on the HU you put in?

 

I used a crutchfield wiring harness. and the wattage is 50x4

 

If you went straight to the speakers from the aftermarket HU, then it should play fine. Sounds like you have another problem. Check your radio manual for troubleshooting no sound issue.

 

all good now just had to splice into red/yellow which sends a signal to the stock amp allowing it to turn on!

thanks everyone!

 

did you get rid of the factory amp? If no, remove it. If yes, check your wiring.

 

i did not remove the factory amp. everything seems to be working fine. why would i remove the amp?

 

you need to put in your signal after the factory amp since A. You need a remote to turn on the factory amp, and B. you are going to blow it up since the factory amp only accepts a very low voltage signal, like about 1 watt...

 

wow didn't know i could blow the factory amp up.. i guess i need to do a bit more research..

 

im just in the middle of my install right now ill upload some pictures tonight

 

whats the point of using the factory amp if you bought a aftermarket head unit which has its own amplifier anyways.