No sound from stereo?

[Limited_gold]

I am trying to put an aftermarket Kenwood radio in my 2004 4Runner limited with jbl. I had it working the other day no problem with music and everything. At first I couldn’t get music to play out of any of the speakers. I plugged something in and it started playing music all of a sudden. I had to take it apart the other day and am trying to put it back together. Now it’s not playing any music out of any of the speakers again. I have the PAC wiring harness. I can’t remmber what wire I plugged in to get it to play. Does anyone happen to know?

 

[E=mc^SQD]

My 04 JBL Synthesis 4ch amp went south.

Has anyone out there a spare or shelved JBL amp they would release?