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Koolertron gps bluetooth radio install.
Does anyone have replaced the original BMW professional radio. I have a 2007 335i but this model has a fiber optic cable and it makes the installation difficult. I\'d like to know if anyone has a solution for the problem. It seems that I\'ll have to re-wire the car, change the speaker and replace the original amp. The unit is fantastic but now the cost of the install went up.
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