Thanks for pointing that out Steve and apologies for missing it. The connector looks like one shown in parts book diagram above for external LED flasher relay. Strange thing is though Tim's car is a 2015 build and it was after August 2014 that the newer 18 pin TSM unit was fitted that incorporated the flasher function, so no need for external one

Either way maybe Tim could confirm if the connector could be moved, assuming it presently would foul the standard cover used on all models. As Jon suggests it appears to be just clipped/slipped onto main battery fuse holder.