Filter Filters 4 Gauge,8 Gauge Under $50 Remove All Filters Condition New (2) Brand Harmony Audio (1) Stinger (1) Connector Type Wire Reducer (2) Harmony Audio HA-WR48 Car Stereo Power or Ground 4 to 8 Gauge Wire Reducer -... $6.95 (1) Stinger SPT522 4 Gauge to 8 Gauge Power Wire Reducer $12.95