Not a lot of room inside for gages so I would like to put them outside and mount them on the hood, (right behine my Hadely air horn)! Has anyone done this? Do you know of a gage company that will make a product that will hold up to the elements. I don't own a boat ,but I would think they would have gages to monitor their temps. I'm in the thinking stage of this new truck project so if you've done this I would like to hear about it. Thanks RG.