Hi Dutchie01 &
We're glad you found us!
I don't know of any way of making the deadbolt operate with a keypad. It is strictly mechanical, and of course the keyless entry is electrical.
So, to make that work you would need a power supply & a motor (and place to put it inside the door). I've had my door apart & there really isn't much room left over in there.
Mark
PS - consider making up a signature block like some of those you see in the forums so that we know what your coach, tow etc is. Saves time & questions.
Welcome aboard!