Trailer wiring schematic needed

[Outlaw]

I am having a receiver hitch welded to the frame of my 30QBSS today to pull my jetski trailer.

I am going to need to get power to my jetski trailer wiring harness via the rear of the travel trailer. I haven't dug into it at all (am at work currently wasting time on this site) but am wondering from others experiences if this will be easy or a PITA!?

Is there a wiring harness near the rear? My salesman said some units tailight wiring was dropped in from the roof down instead of the frame (under) up!? Which seems liek a huge PITA if it is a roof style ssytem!

I just need the "Flat-4" wires for the jetski...any help / advice / wiring schematics out there!?

Thanks in advance!

[LadyWindrider]

Well, there is no schematic for most trailers. You may have to pull each tail light and fish a wire, (the old fashioned way of wiring a harness). The green is the right turn/stop. The yellow is the left turn/stop, and the brown is parking lights. The white is ground. That is the normal color code. Are you sure towing double is legal where you are at?
Also having a hitch welded to the frame my void warranty, but your decision.

[leencharlotte]

Is the 4 pin on your TV accessible while towing? (mine gets blocked by the 7 pin door). If so you can buy 4 pin wire with a 30'+ wire for $10-15. You can run it under the trailer with a plug on the back. Basically run it straight to TV