Quote:
Originally Posted by wardpa
I'm driving a 2009 E91 with HiFi System (SA676). I want to retrofit the L7 system (SA688). Is there a harness available that will connect my existing plug for the HiFi amp with the L7 amp? I know that I will have to retrofit the missing speakers.
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You need the fiber optics harness and coding as well as custom power/ground/speaker harness.
IMO, if you get a JBL MS-8 for your HiFi (and add a center speaker) then you will get a much better Logic7 processor than OEM. There is a PnP HiFi to MS-8 harness available.