Is your car a face lift or pre face lift?
I ask as I understand depending of the set of clocks you have, you can monitor the trailer lights by using a BMW towing relay, part number 61.35-8 369 019 and adding an extra wire between I cant recall and the LSM.
I have not done it but check the forum and there is one or may be two threads about it. It is on my list of to do jobs
macafee2
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