Originally Posted by Horizonchase
So that 7-pole socket from the RV supplies full power to the "toad", what does it get attached to on the toad? Does that cable come with the fuse inline if I were to purchase it?
you will need to install a 7-way male plug affixed to a place on toad (i attached it to base plate horizontal bar, right in front of radiator). The 7-way cable just basically acts as an extension cord, moving the 7-way socket from RV to toad, a big shielded cable without fuses in it. Now on the back of the plug on your toad, you can connect 3 or 4 signal lines directly plus a power line. This power line should have fuse(s). On my RV, there is a "towboard" with 7.5a fuses for 7-way socket so all lines are protected at this end. I just use an inline 8a fuse right before toad battery.
Side notes -
(1) my charge line has a very small current to float the toad battery, 7.5a is more than enough.
(2) your 4 pin designation - a left turn signal; a right turn signal; a night/running lights; and the male pin for ground.