I replaced my damaged 7-way cable with a new one from ETRAILER com. They have two length sizes as I recall... My cable got pinched somehow and wiring was showing through the wire cover. Everything was all still working just showing a bunch of the inside cable wiring
Mine terminates into an electrical junction box just under my trailer box. Mine uses the large yellow twist-on connectors and it was wire color for wire color. Easy hookup...
When I get ready for a trip I always plug in my 7-way cable and do a SAFETY light check walk-around the trailer with my truck flashers 'ON'. I most often squirt some WD40 into the plug area and move around the plug alittle before I latch down the locking lid... This cleans off my connections somewhat...
My pull-out in my neighborhood brings me too a stop sign inside our housing area and I always stop here using the finger knobs on the trailer electric brakes to stop (Not the truck foot pedal)... Sort of my final initial checks before hitting the road...
Roy Ken
