right now i have a 03 max with bose system..i have the aftermarket headunit with the adaptor, any tips or tricks or secrets on what to do, im puttin in mids tweets and crossovers for the front and leaving the rear blank for now...how do i go about doing all of this

 

Take out that Bose adaptor and wire it like a normal head unit. Then bypass Bose at the rear deck. There are 8 input wires and 8 output wires, a (+) and a (-) for each speaker. Connect them accordingly to bypass the amp (t-taps fastest and easiest esp. if you ever want to return it to stock).

Colors:
http://maxima.theowensfamily.com/audiowiring.asp

 

excellent thankyou

 

you sure you dont want to integrate bose...theyre supposedly known for their SQ

 

run new wire?