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      06-08-2021, 11:54 AM   #16
addy27
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Drives: F10 550i
Join Date: Jan 2008
Location: Bay Area, CA

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So, there is a couple of things. One, you should have made a new power wiring harness that goes directly from Battery module to B&O amp (not the same wires as the one used by HK Amp, as these need to be thicker wires). Also, the single wire that resides in the MOST connector on HK AMP, needs to move to (pin 17 I think) on B&O Amp. Without that thin wire, you'll not get the B&O Amp to turn on.
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