looking for a way to run some 1/0 to my amp rack in the back of my zr2 blazer. just a thought to run it underneath in double layers of expandable sleeving with compression grommets leading inside at the amps. i'd obviously use rubber clamps and heat shielding (still have some from my days as a tank mechanic in the army )in the appropriate places. Is this common practice or a pipe dream? lemme know what you guys think.