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Old 04-22-2011, 12:25 PM
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Technic Technic is offline
OEM Audio PnP Integration
Location: Florida
Join Date: Jun 2002
Posts: 7,594
Mein Auto: 2017 M3
Hi Willis

A functioning OEM amp is required for this harness to work.

The issue with the Logic7/Premium OEM amp is that it is a digital-proprietary (MOST) inputs amp so a proprietary device is required to handle those inputs. There is no aftermarket amp that can be used to directly replace your OEM amp.

There is a MOST preamp device available for certain BMW but it is not available for the 7-Series in particular:

Originally Posted by drez14 View Post

I think i might need some clarification on how this works. I have a E66 with an L7 amp that is broken (wont drive the subs) Will this device help me go around my broken amp, or do i need a properly functioning amp for this to work. At first i thought that this will bypass the amp, but im beginning to get the feeling (from reading other posts about L7), that this will only convert the high output signals from a working amp to low output signals to be routed to an aftermarket amp.thanks

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