Very small footprint. Takes so little space and is very low profile as well. I am in the process of making a Custom lower profile radio box that is half the height of the OE box. It will be made from a combination of the lower half(base)of the box and some fiberglass to get the correct shape I want. The top part will house a built in Venom temparature monitor encased inside the box. I am also thinking of doing this to the battery box. It will be of a lower profile as well, it will ressemble the hump pack shape and will also have the Voltwatch encased into the box as well.