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isaywhateveryo , i wanted to do all this few years ago but am cash strapped. The first post listed some options you should consider.
Wether the MObridge is good or bad, first barrier if it works for ur F8x/HU, installers opinions are like ur local corner garage...
Personally I would love to upgrade my radio as I am in traffic a lot and it's much more soothing than having darn burbles or loud exhaust. Of course it's a personal preference.