If anybody needs a backup key,made for their motor home , on a dodge sprinter chassis, your local dodge dealer can help you out.
I contacted Westborn Chrysler /Jeep in Dearborn ,Michigan.
What they need is your proof of ownership (registration), photo I.D.,
Vin number of your vehicle .
You pay up front,then they order your key.
The key is laser cut and programed in Germany, it will take about a week to ten days to get your copy key.
Cost is about $265.00 for this service.
I hope this clears up, any confusion or concerns, about extra ignition keys for those whose RV, is on a dodge sprinter chassis.