GrenadierGuy, this is about 8 months since your post, but I'm curious if you ever figured out the 120v plug and whether it could be powered with the vehicle off. So far I haven't had a clear answer from the dealership, but I thought the marketing and owners manual language pointed to this capability. Thanks!OK, this has been an issue that is driving me crazy trying to run my 120v from the rear of the vehicle with the vehicle turned off so i dont kill the starter battery. still doesnt work unless the key is in and turned to the first position