I was wondering if anyone has done a stock nav to aftermarket nav swap. I know I would then need the AC controls (flebay $150) but are they plug and play? ( I am sure they are not). If not where do I get the proper harness. I think this is my biggest obstacle in switching the old NAV to a Pioneer or Eclipse. I would rather go aftermarket so I could improve on sound quality with amps & speakers, new monster cable etc. Any info would be great or a point in the right direction would be good. Thanks

Matt