Cruise Control
Flip - you're right - it is the audiovox unit. Chris and I installed them on our rockets and built a vacuum reservoir canister to supply the needed vacuum. Chris keeps his under the seat, mine is in a saddlebag. Works really well. Others have installed a vacuum pump, but I find it works well enough for the intended purpose, which is to let you take your hand off the throttle long enough to give your hand a break. Climbs hills and the whole shebang - for a hundred bucks. I first bought a Throttlemeister and now never use it.
Now it's not your plug and play installation, I'll give you that, but if we can do it, anyone can (you need more courage than brains). Vinny Boy