there must be a good custom installer in your area.... some BMW dealerships also have an outsourced person that does it for them....i have had all my cars stealthed by Tecnic1 in NYC

__________________
HP=s

2012 GT 550ix Msport (feb12)(ok early march 12)
09 X5 4.8
12 X3 35i (the wife)
09 C4S
61 356 roadster