This might help you more than me trying to explain it to you.
The remote control module in ours is located on the back wall top right of the battery box.
http://www.montanaowners.com/forums/...ad.php?t=46515
And this is what the handheld remote looks like, "not the module" that is what they sell for a replacement... Our module looks like the one in the first link.
https://www.amazon.com/Wheel-Remote-.../dp/B00YZ5C8EM