Is the trunk not open manually with the key or is it an electronic thing as well? I added a +pos to inside of the trunk from under the battery so i wouldn't have to take everything out of the trunk to get the flap open and jump start my car. I was ahving battery problems so I got tired of moving everything out and did it. I just get ground from a hook thats by the manual gas open tab. I haven't sanded it down to use it yet but its all set up. Just have sand and its done to use. I think having the battery in the trunk helps a lot. I dont have to flip over to jump someone or them jump me. I just go in reverse, or when you're park in those slot where your hood is away from the cars passing, what are you going to do, push the car back to get jumped? nope, someone pulls up behind you and jumps you right up.