Your best bet is to check with your local pawn shops and give them that info, best case cenario the *** will try to hawk it and the pawn shop can notify you and the police if it shows up in their store. Also keep an eye here on XBL and see if your GT is
being used if thats the case try contacting the staff for further assistance. Just straight up calling the police even if you live a sparcly populated area most they will do is report it and that does nothing unless some one turns it in to them or something
along those lines.