Yes there is. You still need anti sway as well as trip wire for 3 way fridge and probably a charge connection for the van battery as they are usually thicker cables. All it does remove are the standard 7 pin plug connections. All vans I know of have 12 pin plugs along with anti sway and fridge fridge connections via anderson plugs.

Dont think wireless connection is reliable enough for my liking .to much potential for interference.