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.
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.
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This wire diagram should be the same as yours
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