I'm putting Symtec heated grips on my bike and don't like the little toggle switch. I want to get the Highway Dirt Bikes top clamp so I can turn them on or off. My question is can I get the one with the little turn dial to act as the rheostat to control the current? I'm thinking turn on the grips with the push button and control the current with the dial. OR turn on the grips and control the current with the dial. I'd also like to have the little LED light up so I know that they're on. For those familiar with these, can I use the one from the HDB or do I need to get a stand alone controller ala Geek's Gerbring setup, post #206 in "Back in Black"?