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Thread: 2006 Z4 stereo gut/rewire

  1. #1
    Join Date
    Mar 2018
    My Cars
    2006 BMW Z4

    2006 Z4 stereo gut/rewire

    Hi, I just bought a 2006 Z4 3.0i with the 10 speaker hifi system without nav and dsp. I知 a little disappointed with the stereo system. The head unit is partially broken and the rear speakers are shot. I have spent many hours online and on the forums trying to figure out how to replace the head unit. I have come to the realization that I need to gut the system and completely rewire new speakers, new amp and new head unit. I知 ok going this route but I知 still not crystal clear on what wires in the car to tie into.

    My questions are:
    1) What wires in the bmw do I connect the head unit battery/power wire (red/white I think) ground wire (Brown I think) and ignition/ accessory wire to?
    2) what in the bmw do I connect the amplifier(s) remote turn on wire to?

  2. #2
    Join Date
    Sep 2008
    West London/Heathrow - UK
    My Cars
    03 530dT - Ex Police Car

    I'd suggest taking your car to a local reputable car audio dealer/installer. Prior to that, look around on the web for other Z4 installs as I do know there's various ones out there where a full aftermarket install has been done. You might need to speak to other installers in the USA who've done such installs to ask any specifics and then let your local installer know so that they have more of an idea etc. Depending on what route you go, you might not need to know the above as a small external amplifier could be used and the installer will know which wires to connect or, might run separate wires with fusing and protection.

    Cheers, Dennis!

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