When i bought the aftermarket connector to hook up an aftermarket radio it showed the factory plug and where the wires went for the front right, front left, rear right, rear left speaker. i have lost the small book that came with that showed that and wondered if anyone had a diagram. i used the factory wire for my back speakers. so both 6x9's are running on either the rear right, or rear left. there not seperate. and im gonna do my front speakers soon, and want to run new wires so i have all 4 speakers on seperate channels.