On the Ducato the 2 front doors are on one circuit, the side and rear doors on another. My X2/50 came with a cylinder on both the drivers door and the rear door - so I could lock and unlock both circuits with a key. But the X2/90 came with only a cylinder on the drivers door. So I can't unlock the load compartment without the remote. This could be a problem for some, but not for me because I took the bulkhead out to turn it into a camper