Re: short circuit tail lights
Is it just when you get to parkers, or when lights are actually on?
Try checking all the bulbs first, maybe one is fused inside and creating the short, take them all out and see if the fuse blows, if it does suspect wiring, a bugger of a job to source, if the fuse holds up, start putting back one bulb at a time to see when it blows, and then think from there.
Good Luck !
I did put something here, but it vanshied, I think
"So long and thanks for all the fish!"