I have a truck with a Tommy Gate and the rear blinkers/tail lights are not working. They are blinking fast. Front works. I am going to sell this vehicle and I need to drive it serveral hundred miles and I don't want to replace the lights because I either have to work on it forever or I have to remove the tommy gate to get at the lights. Is there a CHEAP temp option for blinkers that I could get? WIreless or battery powered? This is a 1998 Chevy 1500.