I read in a "how to" article that you can lay track onto Topper Tape. The article says that topper tape is "a material used to insulate pickup truck caps".
For those of us not resident in the USA, although I would think we all know what a pickup truck is what are "pickup truck caps"? I've been trying to think what would be on a pickup truck that's not on a car, and that would need to be insulated.
If I know what its used for I can look for it here (Australia).
Ken G.