This confirms my theory. Did you happen to buy the wiring harness that fits your car specificly? Or other Daewoos? or did you just splice into the cars harness?i have a battery wire off my pioneer deck. Does that have to connect to the battery directly or is that something that i can connect it to else where in my optra 5, The ACC wire i connected to the ACC wire off the stock deck, and the other is illumination wire. Off the stock deck there is + - for illumination should i put them together and then connect it to the pioneer?