This is the way. Check with your Raven dealer to see if the ultraglide node you have is ISO. If it's not your choices are to upgrade the node to an ISO node or get a controller for your node.

When I switched my 4420 over I decided to:

1. Put a Case steering valve on so that the AgLeader could run it
2. Put an XRT boom height system on it (only supported on 2017 and up sprayers but all you really need to do is to get another CAN back there and T it into the AgLeader stuff
3. Put a newer auto-fold node on so that it could be ISO as well

Now the InCommand runs steering, product control, boom height (through universal terminal) and auto-fold (also through virtual terminal). No other displays in the cab. Kinda nice and everything actually works, especially the steering which was a huge joke with the factory Raven.