I am a Service Manager in the auto bizz. It's not as glamorous as it sounds.
Anyway, make sure it is installed by some one EXTREMELY reputable. You don't want people chopping up harnesses and crap.
So a service manager doesn't live the rock n roll 24/7 party lifestyle everyone says they do? That's disappointing. For what it's worth, neither is life in disability.
Yeah I'll most defiantly be very selective about who works on my car. I'm actually giving serious consideration to the OEM NAV. With the price of an aftermarket install, the two options are separated by around a grand.... I'll be pondering this for awhile. OEM