All ActivityMost RecentMost LikesSolutionsRe: Ford E450 12vThanks for all of the suggestions. Radio seems a good place to start. Some interesting points in the dash cam article, however they are becoming common over here and can be used in a court of law to support your case if needed. We have them fitted to our Harley's for the same reason. MickRe: Ford E450 12vahh, I understand now. No there are none fitted in ours, it's a 2008 model. There is the fuse box on the drivers side and I was just trying to avoid going down there to find one! I'll see what turns up on the forum. Thanks, MickRe: Ford E450 12vWhat's an "upfitter switch"? Don't know that term MickFord E450 12vHello from England, We have a Ford E450 based RV in which I would like to fit a dash cam and ideally power it on when the RV engine is turned on/started up. Does anyone know how to pick up a switched 12v supply in the cab? That is reasonably easy to get to! Many thanks Mick