2011 outty xxc V=IR

Hey guys I got a simple question for those of you in the know
– last week I had to limp home with a over temp motor later found due to a bad fan fuse (no idea why fuse blew,,,?)
Anyways long story is now I’m installing A Hayden 3647 fan controller and I’m wondering where and what wire to use to tap into the 12v with the controllers red and yellow wires…. Keep in mind that I want to later install aftermarket hand and thumb warmers so I don’t want to use the wrong circuit or overload the acc circuit

Pretty much if I find the acc wires under the pod will that circuit allow for everything it has on it already along with hand and thumb warmers AND the fan controller?
Or is there another source/circuit I would be better using …… Plus someday I’d like to add a small led light bar

Thanks so much for any insight