The Express comes with a Kenyon. There made in Connecticut. Dont know what size would be on the express, I would love to add one also, Keep me posted if you do it.
Stay tuned. I'm gonna get this one done. I talked to a grady white technician from a dealer and he said that on my boat the wiring for the grill is probably already in there. I just need to figure out which model i need to purchase. I'm probably going to do the install myself.
Been contemplating this too but on a 2012 model, please keep us updated. This is the one I believe it is after looking at ones on newer Gradys. From what I understand the Kenyon B70060 is 120v and B70061 is 240v
Shoot a message to GW Cust Service. They can give you the factory part number and the manufacturer. I'm sure the manufacture can cross reference it for you and give you the exact one.