Using the Metra 70-7550 to wire up my CarPC to the factory Bose AMP. The harness has a blue/white wire which is the amp turn-on wire. I have connected this wire to the "remote" wire of the CarPC PSU. But I think the AMP is now off all the time. E.g. that blue/white wire also needs to connect to the AMP. I can't figure out which wire goes back to the AMP and needs a connection to this blue/white wire.

I've looked through these wiring diagrams and I see that M41#12 maps to the blue/white of the Metra harness I just don't know where to connect this wire so it ends up going to B114#9 of the Bose harness.

Appreciate the help!

 

Nevermind, after a little more thinking and digging, I realize the blue/white wire is going to the AMP and is powered by the "thump control" wire of the M3-ATX PSU. All seems fine now.