As some of you know, toyotas like mine have the efi computer located down in the passenger side kick panel. This location and the fact that it isn't really waterproof could cause problems in deep water crossings. So I'm going to relocate it. Most people say to just mount it above the glove box in the dash. My question is why not get a small waterproof ammo box and place it in there? The only problem I could see would be possible heat buildup. Would this be a problem, or should I not worry about it? I really can't say I've ever checked to see if the the thing gets warm of not. Any other problems with this idea?