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BMW Car Radio Wiring Diagrams

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Our complete BMW radio wiring diagrams shows you all the stereo wire harness colors, speaker wiring colors and speaker sizes. Each BMW radio wiring diagram lists information from hands on experience or is provided by our community that is verified. That’s why you can be sure you’re getting the most accurate BMW radio wiring information.

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68 thoughts on “BMW Car Radio Wiring Diagrams”

  1. Dave, as much as we would like to help you, most of the car stereo wire info listed on our website is provided by our visitors. We currently do not have any information on the 2008 BMW 135i head unit but hopefully someone from our knowledgeable Modified Life community would be able to post a reply.

  2. I have a 2008 BMW 135i. It supposedly is wired for satellite radio, so I need a diagram of that. I have a sat radio I want to get installed, so need to know what I need to do so. thanks.

  3. David, if you’re installing an aftermarket radio into your 2001 BMW 325xi and want to retain your steering wheel controls it is possible but it depends on the manufacturer of your aftermarket radio:

    Steering Wheel Control Adapter for Alpine Radio
    Steering Wheel Control Adapter for Blaupunkt Radio
    Steering Wheel Control Adapter for Clarion Radio
    Steering Wheel Control Adapter for Eclipse Radio
    Steering Wheel Control Adapter for JVC Radio
    Steering Wheel Control Adapter for Kenwood Radio
    Steering Wheel Control Adapter for Pioneer Radio
    Steering Wheel Control Adapter for Sony Radio
    Steering Wheel Control Adapter for Valor Radio

    If you have never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck with your 2001 BMW 325xi stereo installation.

  4. I have a 2001 bmw 325xi, Just bought a double din radio with built in steering wheel controls… where is the wires coming from the steering when and what wires do what? If it is on the radio harness can anyone supply me with a full wiring diagram to include steering control wires? Thanks Alot!!!!!!!

  5. Edward, as much as we would like to assist you, most of the car radio wiring information listed on our website is provided by our visitors. We currently do not have any info on the 2008 BMW 535i radio but hopefully someone from our knowledgeable Modified Life community would be able to chime in and help you out.

  6. I need the wiring diagram for 2001 bmw 325i sedan. Bought a hd radio which requires me to hook it up through the existing wiring radio.

  7. RobertW, as much as we would like to help you, most of the car stereo wiring information listed on our website is provided by our visitors. We currently do not have any information on the 1991 BMW 535i stereo but hopefully someone from our knowledgeable Modified Life community would be able to chime in and assist you.

  8. i need a wiring diagram of the 1991 BMW 535i with the factory 12 speaker audio system. i’ve bought a generic adapter to install a jvc stereo and none of the wires are correct

  9. charles lamberti

    Hi, 1997 BMW Z3 Alpine cd changer in trunk. Need the wiring diagram for both harnesses to changer and the amp trigger line from the head unit. Thanks.

  10. Do you have a 1997 325I convertible? Probably the same as other years, but I want to be sure. Thanks very much!

  11. please can u find diagram for 1991 525i, specifically to disable the security and stereo so i can put a new one in Thanks in advance!!!! seth

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