1996 Nissan Sentra Stereo Wiring

I cannot find a valid wiring diagram for a 1996 Nissan Sentra GXE that shows the wire colors accurately. I have been able to determine by inspection what some of the wires are, but without testing each circuit, the rest are a mystery. It came with a Clarion 9945M Cassette Deck and four speakers. I'm trying to install another stereo but I can find no publication that has accurate wiring info. Hugh McBryde

Thanks Mo, am I to assume you are in the Armed Forces? Hugh McBryde