M3-100 HU Replacement by JakeWilson

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Morning all,

Our M3-100 head unit in the contemporary (not CD80 as I first thought!) has always played up since we first got it.

- it forgets the security code and all your eq's and radio stations.

- on occasion asks for the code when changing from cd to radio etc

- causes almost a a static bump through the speakers, when starting the car.

Would like to chance it for something MGR, to keep it OEM, but not sure what options there are?

Any help at all appreciated.


Posted 04 Jan 2011, 02:07 #1