subdev wrote:
Well, I can tell you that Fiur Winds built my 35' class A with only. 4-pin. I just bought a tow dolly with elec brakes and a 7-blade plug, which is why I'm upgrading to the 7 -blade and the brake controller. So do I only need to run power if I want the dolly battery to re-charge? Will the blue wire alone, power the brakes? Still don't know why another white ground wire is needed if the plug has ground at the back of the MH.
Thanks.
maybe try reading my post to you. Controller needs a ground also
hundreds of Class A MH come with no plug or a 4 plug not all that uncommon