Hi I'm trying to fix my wife's 07 FR-V's rear tailgate... It has taken to not opening sometimes, and today wouldn't shut. I suspect that it is the handle that is sticking, peering under it looks quite rusty. Does anyone know who to get access to it before I prise off the interior trim only to never get in on again? I've taken off 2 access panels, one of which is teh back of the catch but I can't see what else I do from there... Thanks and apologies if it is a stupid question.