ASD bypass harness takes the ASD module inputs/iDrive outputs and bypass them into the HiFi/HK(674) OEM amp inputs. For the MOST/digital HK OEM amp, the bypass harness simply makes the ASD module to not output any signal. Therefore, no ASD outputs are mixed with the OEM audio system. ASD module is still operational and visible to the dealer computer so all OEM car software updates can be performed without ASD errors.
ASD Bypass harness installs in between the ASD module OEM harness. The ASD module is not the OEM amp -two different modules.
New harness design -no longer requires disassembly for installation. Full 100% PnP.