Our KZ Spree came with a capped off tee fitting on the black iron pipe under the trailer. Your Durango probably has a tee as well. We had our dealer add a quick connect fitting. Easy to do yourself if you get the right parts and pieces. This photo shows a quick connect I added to a previous TT. Our dealer did something similar.
The regulator on a Weber Q or Roadtrip grill can easily be removed and a quick connect fitting added to the grill. If you do this, I'd suggest a 20' 3/8" hose (instead of 1/4") and get the type that is more flexible type so it coils up easier.
