Im thinking of going custom because I want to do headrest monitors and to run stock NAV w/ an ML DVD player it costs another $800-$900 for the built output on it +harness and ML DVD part. Anyone know what a good deal on selling the stock nav part is?..$2,500 shipped too much? I know they sell between $3,000-$3,500 and I don't want to be crazy! PM if interested, I will be looking around at different audio/video setups in the mean time..may as well do custom double-din dash and such, prepared with some cool @$$ LED switches, maybe boost gauge holes for later haha