Upgraded NAV system for GL550
I was never a big fan of the Command system and am wondering if there might be an aftermarket alternative that would include an improved NAV system with rear DVD and backup camera compatibility.
The body shop is willing to pull the system for me but would like some schematics to guide them.
Before I have them do this, will it plug into the wiring harness of one that doesn't have it? Where can I find the schematics?


