I've seen a few done that way and I like the clean look it provides, but I placed mine in view so I can take a quick look at all of it and determine if anything is wrong...ie leaks, bends, road damage, etc. I did run the big power cable to the battery and the fuel line that way...inside the rail. Every trip I make will include atleast 3 miles of 2 rut dirt road...my driveway!