My earlier post was only partly correct. If you purchase a used (previously owned) Tesla vehicle that has the AB from a private seller then the AB would convey with the vehicle to the new owner. If you purchase a previously owned Tesla vehicle directly from Tesla then Tesla is free to remove the AB before reselling the vehicle.Wow. This I wasn't expecting. I know aftermarket items are not a one to one when you are selling a car or bike, but to some people they are worth the investment. This is just as if you paid for floor mats and before you sold your car, you just threw them out in the trash.