Ok.. i have transfered my wifes stock 6 dics changer (from her 07 forester) to my 06 wrx (the part #8901 wiring harness does work by the way - since we put the dvd HU in her car). Anyways - does anyone know how the Aux input was wired into the main harness as i would like to take that as well and put itin my car. i did some searching but nothing really explains how it is wired in. Much thanks