Hey MAW888, thank you for the incredible post and idea.

Have you figured out which wire is the remote for the factory amp? I'm really keen to set this up but i'm not too keen on butchering my ciggie lighter.

Btw, good job. I wouldn't have even known about this if i hadnt seen your post!

Hey MAW888 you wouldn't know how to hook up an aftermarket head unit to speakers etc underneath the dash what wires are which so I can hookup my amp an sub