Quote Originally Posted by patrick4588
so um mazda millenia's suck. i had to do one today with a bose system in it. there is no amp bypass or integration harness for it. you have to use part of the mazda 70-7901 harness and part of a hyundai harness (cant remember pn) and then test the wires to match the speakers. the one i did today ended up having red to white and yellow to green and stuff. it was hella gay; and the car was completely stock. millenia's = supreme fail

i did one that had 12+, switch, ground, remote turn on and illumination in the harness and a data wire going to the bose amp and thats it. I just opened up that data wire that comes out of the factory radio which looks like a cd changer plug that goes to the factory bose amp their 4 sets of wires inside of that wire. i just hooked up fl, fr, rr, rl and then at the bose amp did the bypass and connected all the wires to the data wire, saves time and required no extra wires to the amp and looks alot cleaner.