2002 Tahoe no audio from the radio

[rroscher]

I have just purchased a 2002 Chevy Tahoe and I replace the stereo the old Sterling Bank Ernster do not have any audio coming from it I've checked all the fuses are fuses are fine any suggestions what I should check next I think it may have something to do with the audio amplifier any help is greatly appreciated thank you

 

[bacernate]

The pink wire on the factory plug must be hooked up to the remote on or power ant wire on the head unit. The pink wire turns on the factory amp.

 

[1morequestion]

I have same problem but no sound from rear door speakers and subwoofer. There is no pink wire to be found. (Non bose non On Star)