i already hit up everything local (home depot, lowes, local hardware) and none of them carried 4g butt connectors. since i have to order one online i may as well go for the set screw style and be done with it. plus that would give an easy point for removal when needed. the system went into a summer jeep (no top) that is mostly a work car, so i built everything to fit behind the seat and be easily removable. the only lines that were not setup were the power/ground, so i actually need 2 of them.