Here we have a used am/fm module, I assume it may be the antenna switch or something? part number 6520 9273667-04, removed from a 2015 M4 with only 7740 miles, please verify this is the right part number for your car. I'm also parting out the rest of the car, so If you need anything please send an email so I can list it on eBay for you. The car was damaged in the right side door and quarter area mostly.