Hi everyone - just pulled our camper truck out from winter and the back driver's side brake light/blinker light is out. We tried to pull it out in front but it seems to be wired in back. Is the only way to access it is to pull the camper off the truck? There seems to be a panel there. We hardly ever pull the camper off (store it on the truck) so would rather not do that if we don't have to. Has anyone changed that light off that can walk me through it?