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      12-08-2011, 12:59 AM   #1
W Cole

Drives: 2009 M3
Join Date: Dec 2010
Location: Newport Coast, CA

Posts: 764
iTrader: (4)

2009 Homelink Mirror Retrofit - Cable required?

Hey guys,

I have a 2009 M3, build date 9/08. My car came with an autodimming rearview mirror without homelink or compass. I purchased an autodimming homelink mirror with ghosted compass off of an unknown vehicle.

Now that I received the mirror I have been reading DIYs in order to install and many mention a retrofit cable. If the connector in my car plugs into the connector in the mirror am I good to go? What is the retrofit cable for exactly?