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Thread: Troubleshooting audio system

  1. #1
    Join Date
    Jan 2019
    Location
    Southern Maryland
    Posts
    5
    My Cars
    1997 328i

    Troubleshooting audio system

    I have a 97 328i and none of the 6 front speakers work at all. The only sound I get is from the two rear speakers. I believe I have the hk setup with the hifi switch. The previous owner put in an aftermarket head unit (which I replaced with my own). I知 not really sure which direction I should take to troubleshoot this issue. Currently I知 at work but when I get off I知 going to check the amp for any blown fuses.

    My thinking is that maybe when the previous owner removed the stock head unit they messed something up with the hifi switch or cut power to the switch which lead to none of the front speakers working? I know the hifi switch needs 12v for power but I don稚 really know enough about the hifi switch to know if I知 right or way off base.

    I was also thinking that maybe the speakers just went bad but having 6 speakers go out seems pretty unlikely to me.

    Any advice or suggestions are greatly appreciated.

  2. #2
    Join Date
    Apr 2015
    Location
    Tennessee
    Posts
    1,734
    My Cars
    1998 BMW 328i
    Hifi switch would be the last thing I'd check. Pop out the kick panel speakers and check for 12v at the connector while the stereo is running. Check the front speaker leads at the amp for continuity as well.

    Sent from my VS987 using Tapatalk

  3. #3
    Join Date
    Apr 2015
    Location
    Tennessee
    Posts
    1,734
    My Cars
    1998 BMW 328i
    This wire diagram should be the same as yours

    Sent from my VS987 using Tapatalk

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