JBL System Wiring Information?

Does anyone happen to have a schematic and/or information on the connector pin-out for a stock JBL 6 CD changer/Radio/Cassette player out of a 2003 4Runner? I was wondering if I could add an aux jack to support an MP3 player input.


I currently have the unit removed from our 03 4Runner due to a plastic gear failing (I fixed this by fabricating one out of aluminum).