Soo Im getting no power to my radio wipers heater when the Jeep is ON but when i put it in aux it all works just fine.... yesterday I put on a rear windshield wiper and it burnt up the engine IDK why.... but the back hatch started to smoke.... SOo would this lead to a burnt wire or? something else.

 

try jiggling your iginition switch and seeing if that fixes the prob.... more than likely its a faulty switch.. cheers.

 

Not sure about the smoking part but the no power to radio heater stuff sounds like the iginition switch. About 40 to 50 bucks at auto store.

 

sounds like you had a hot wire ground out on you start from the wiper motor and trace it out a good ways

 

Definatly the ignition switch!!