The only difficulty that I've found (on both a previous Jayco and on my current Rockwood) is that the 120v plugs that the TT mfgrs use are "junk" compared to what you would purchase for your home. They have very cheaply made clips, which attempt to hold the wire-ends in. In both cases, where I wanted to extend a circuit from an existing outlet, I wound-up replacing the recepticle as well. Only anot a $3 or less part, but it was better than getting frustrated extending from the factory original recepticle.
2014 RAM 2500 Laramie 4x4 Quad Cab w/Cummins Turbo Diesel, 2009 Rockwood 2607, and 3 'yaks!
300W of Suntech Solar, a Rogue MPT-3024 Controller, and a Xantrex PW2000 Inverter