first thing...ain't no wires..unlike beemers..which is a pretty cool thing...lexus doesnt have the system pre wirted to the trunk...that is the reason for the 6 cd changer...so they wouldn't have to do that...so what ur gonna have to do is re wirte everything yourself...don't have some dude at circuit city do it...they might scratch your car..i seen them in those garages..swinging them doors open and just throwing stuff around...