07 Base model. PAC integration unit with Pioneer deck.
Which wire from the factory radio harnesses is the parking brake cable?
What do you ground to in the chassis? It seems like some of the common spots are not working.
Can you disable the factory sub by yanking the green wire? Can that green wire be used for remote for an aftermarket sub?

 

maybe this wiring diagram will help

 

Thanks, Ill check it out.

 

Is the extra harness hanging from the trunk/fuel lid harness for the sun shade or parking sensor option?