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  1. #1
    Join Date
    Feb 2019
    Location
    Kingston upon Thames
    Posts
    27

    Default Stereo fuse keeps blowing

    Hi all, my stereo keeps blowing thebl10a fuse at the back of the unit by the dins. Any ideas and does the wiring look right (pic to follow as can't upload now) as the leads going into the din were loose when I took it out. Its not worked since I've had the car.

    Thanks 👍

  2. #2
    Join Date
    Jul 2005
    Location
    over here
    Posts
    13,828

    Default Re: Stereo fuse keeps blowing



    Without a multimeter, Id suggest disconnecting the middle (connector B) connector , then re-testing.
    Still blowing fuse, the head unit has an internal fault., not blowing you have a speaker problem.
    With a multimeter, Id suggest disconnecting the middle (connector B) connector and checking impedances of each speaker from that removed connector.
    fq101.co.uk

  3. #3
    Join Date
    Feb 2019
    Location
    Kingston upon Thames
    Posts
    27

    Default Re: Stereo fuse keeps blowing

    Thank you TAIM, I don't have a multi meter but feel I will need to invest in one!

    It's been suggested it's the wiring from the loom into the back of the connector that's wrong but for the life of me I cannot find the correct positions the wires should be in, Mercedes won't give me it for 'liability' reasons!

  4. #4
    Join Date
    Feb 2019
    Location
    Kingston upon Thames
    Posts
    27

    Default Re: Stereo fuse keeps blowing

    Who thought it could be so hard to find a diagram, just spoke to a smart specialist and he said unless can get a photo from someone need to take to an audio specialist, called and they want 80-120! 🤔🤷*♂️

  5. #5
    Join Date
    Jun 2005
    Location
    Aberdeenshire
    Posts
    2,079

    Default Re: Stereo fuse keeps blowing

    Evilution has pinout for 451 radio wiring so there is no real need for any wiring diagram.

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