i got a long drill bit and drilled a hole thru the floor INSIDE by the tail lite wires on the left side and ran 1 wire from the right side turn to the left area on the inside of the car taped down, its ok for now. and ran all 4 wires thru the hole and down to the hitch, i used a flexable piece of plastic rod thru the hole for my pulling snake. takes a little work, nothing physically hard.
my trailer uses neon? lites, not the regular bulbs. after it was all done i put some goop in the hole where the wires go thru so it wont wear thru the wire.