Hi there I need a little help wiring up a walker implement hitch. I purchased a used hitch and 42 inch snowblower. Did not come with any wiring, only two wires coming out of electric motor on the hitch. I wired it up with a single on off switch. It goes up not down, do I need a different switch wtih allows the motor to retract. Also would anyone have any tips or things to watch out for on these blowers, or how you like them for snow. Thanks.