MRLexLuther757

I recently bought a salvaged titled 08 350 with 140k miles for 5k and I was wondering if this was a good deal?..It has oem nav and the rear end (which was wrecked and completly replaced which made it a salvage title) was rebuilt in great condition. I'm just wondering if I got a good deal or did I over pay for a salvage titled car. I took out the factory 6 disk changer and put in a double din Pioneer avh-4200nex total upgrade!!! Any thoughts would be appreciated

I apologize, what I mean is the wiring diagram that connects to the factory radio. I have a 2008 RX350 W/nav without ML system. I'll be getting the Pioneer AVH-4200NEX this Friday and I also bought the idatalink Maestro SW to retain the steering wheel controls. The issue that I'm having is the Maestro instructions tell me to connect the wires to the factory harness...see attached...would tapping into my factory harness be absolutely necessary? or could I just splice into the pioneer headset wires? any help on getting this install done would be much appreciated NEWPIONEER-Maestro.pdf

does anyone have a wiring diagram of the radio? I'm trying to hook up a maestro SW