When I worked at a Motorola Shop we had a radio installer who put a VHF radio in a Prius for a school district. He ran power wires through a grommet in the firewall, fished them through with a sharp metal rod. Don't have to tell you how that ended but I will because it's freakin' funny to me. Car wouldn't start or move, dash displayed "Problem". Ya think? Manager had to have car towed to Toyota, entire wiring harness was replaced, boy did the shop go backwards on that job!