Just picked up a new p-500, was out plowing snow today ( yes it is still snowing here lol ) and wow is the reverse slow. Backing out the driveway was painful. I was reading about the reverse mod for the 700, will this also work on the 500? I would want to hook it to a rocker switch so I would only use this while plowing or stuck. Has anybody done this mod on a 500? Is there a plug and play for this? Any info or pics would be awesome thanks.