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BMW 3-Series (E90 E92) Forum
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Technic Harness
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07-23-2021, 02:56 PM | #1 |
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Technic Harness
Technic harness 676 for audio system Harness plugs in btw factory amp & LOC converts the high level oem amp woofer signal output onto low level aftermarket amp signal inputs for a subwoofer or / and to power the underseat woofer |
08-16-2021, 03:44 PM | #2 |
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is this still available?
Is this how you add amps to power the door speakers and underseat woofers on a L7? I assume the add a sub, is a separate harness, correct?
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