I got this figured out. I will post the pieces here.
https://www.amazon.com/dp/B07TS3GPQ1 will do the trick.
It uses the same drivers as the expensive device for older Icons.
I need to provide a diagram for the 4 individual wires coming out the back end of this thing. You will need to make an adapter cable that goes between these 4 wires and a 2X2 molex connector that goes into the cart.
Will post the diagram soon - got to go now.
Editted:
The link above is what I purchased. Looking carefully at the picture, I hope
they didn't change the device - looks like there is an extra pin...
stay tuned.