This amp doesn't need a LOC.

I finished the rest of my install a couple of weeks ago - picked up the signal from the factory tuner after deactivating DSP.

Sound quality is excellent now. I think there was something wrong with my DSP amp.

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12 X5 M - 06 X5 4.8iS - 03 X5 4.4i - 03 M5 - 02 X5 4.6is - 99 M3 Dinan S3 - 98 M3 - 92 850i-6 - 92 850i - 91 325ix - 89 M3 2.5 - and a few parts cars