I know there are a number of hand throttle kits available for Jeeps in order to keep the RPM's up from outside the vehicle when winching, running an EDC (engine driven compressor), etc. Can anyone point me to something for Silverados/Sierras? I've been looking and haven't found anything...

If not, can someone tell me what I might have to tap to electronically control the throttle? I'm interested in a throttle control kit for those times when I need higher RPM's while stopped ... when outside the cab. I'm happy to make or modify something to do it ... but I'm not well-enough versed to know where to begin with our trucks.