Can I reuse this previously installed Invisibrake? See photos

[TN Jen]

Bought used 2014 greyhawk 31ds. see attached photos of previously installed Roadmaster invisibrake by last owner. There was no hardware for the toad.

I am getting my rig set up and do plan to acquire a new toad in the next week, likely a 2013 Honda fit. I will need to install baseplate and braking system in the honda

The question: am I one step ahead of the game by having the RV portion of the invisibrake already installed? If I buy new invisbrake kit for toad, will it communicate with this old wiring in the RV?

Thanks!

[WinnieView]

Your question would probably be best answered by Roadmaster Tech Support after providing them with part numbers and details of the RV-installed side of things.