good to see you are using ur brain and not other peoples
1. get a mini-Z steerin pot and Xmod steering pot.. measure values then wire it up with appropritate resistors added to ‘even it out’
4 wires = 2 for the pot 1 for power 1 for ground simple enough?
2. hakhawk unless u can buld a PCB or have good skills buy one if u have to ask .. buy one
3. 7.4v? plug it in and find out i would guess it would take 9V but if u wanna play safe 2 and 3 can be fixxed with a nelly
the Xmod servo is much stronger
