Bob in Loomis

We just purchased a 2013 Edge to tow behind our RV and anticipate the same dead battery problem. There are several after market solutions but I asked our local Ford dealer some questions: 1. What linkage locks and unlocks the steering and front wheels or are they ever locked? 2. What is the power draw with the key in the accessory position? 3. Is there are fuse I can remove to eliminate the battery draw? If so will all the electronics be erased? Which fuse? Will let this forum know the results (if I get one) Bob