I have to chalk up another one - installed the Dynavin head unit instead of the OE HU. Updated look for sure, and I got what I need on a day-to-day basis: hands free phone via integrated Bluetooth. GPS is also handy. The other (handful) of features will come in handy, I'm sure (on one of the other cars, I have installed a similar unit, and when I go shopping with my wife, I rather sit in the car and start watching something - like a movie, or whatever, instead of browsing for shoes or underwear.....)

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Stable: e92is, e46 M54B25, e83 N52, e53 N62 - sold, e39 M54B30 R.I.P.