Filter Filters Ring Terminal Harmony Audio Remove All Filters Price Under $50 (2) Condition New (2) Wire Gauge 1/0 Gauge (1) 4 Gauge (1) Qty Package 1 (2) Harmony Audio HA-RT4 Car Stereo Power or Ground 4 Gauge 5/16" Ring Terminal -... $5.99 Harmony Audio HA-RT0 Car Stereo Power or Ground 1/0 Gauge 5/16" Ring Terminal... $6.95