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      11-04-2016, 05:16 PM   #157
435MSport6Speed
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Drives: 435i M Sport 6 Speed
Join Date: Mar 2015
Location: Mass

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Anyone with "analog out" stereo coding and an aftermarket amp have the combox retrofit done?

I have the above and I'm trying to figure out what I'm in for. I saw one post an owner with an amp was told the factory amp had to go back in for the retrofit which would be a pain.
Appreciate 0