I did a test pad of what I said I would do above and it worked PERFECT!! No more gutting up and modding a mini RC Car, you just gotta mod up the Transmitter switch on a real RC transmitter. I'll post another thread of the test pad I did.
Lynn, pasted below is what I plan on using. The buttons or momentary contact. So, you can use one channel for the down of the RF and the other for the up position. I know we're not supposed to post links to ebay, so here's the description and pic of what it looks like below. This should be an easy modification to connect to the contacts in the remote and hard wire to switches in the gauntlet. You will need a battery pack for your relays on the board and the stalk actuator.
Details about 12V 10A 2 Channel Remote Control Switch Relay Wireless Transmitter+Receiver