I added a CD player, amp and sub. Those components work fine, although the speakers are not turning on? As wiring I noticed the white wire looked like it was used at some previous point. I understand this to be the turn on signal for the speaker amp(s). How do I wire this to get the signal?

Thanks

 

bypass the stock amps by running wires directly to the speakers and bypass the crappy in car wiring.

 

^ +1

 

It looks to me that the fronts have new wiring. The rear are stock wiring. I have had it working before, but 3 years ago the deck was removed, just curious to why the white wire is useful, and how to control it?