If you mean the cords between the trailer & the RAV4, one is the standard trailer cord & the other fir the rear view camera mounted on the trailer.
If you mean the AC power, the Marinco twist lock connector was an option with the trailer & the only one I'm using. The door spring has failed & I'm currently waiting for a replacement from Marinco.
The remote is mounted on the face of the bed platform. As to dealing with an inverter generator
, I'll make up a plug with the neutral tied to ground & plug it into the other receptacle on the generator
to solve the open ground problem (that isn't really an open ground, just the way most EMS units attempt to find one).