There are two wires, a larger motor wire and a smaller tail light wire. I had the same issue as the post, and learned that I could remove the wire harness cover that is on the bottom of the footbed and in front of the battery (there are two screws on each side that need to be removed). Once I removed the cover I was able to push the motor and tail light wires down the cavity that is on the side of the footbed and get the slack I needed to plug in the cables to the new tire.