Butt Connectors Harmony Audio HA-BC1416 Car Stereo Butt Connectors 14 to 16 Gauge Wire Blue... $7.95 Harmony Audio HA-BC1012 Car Stereo Butt Connectors 10 to 12 Gauge Wire Yellow... $6.95 Harmony Audio HA-BC1822 Car Stereo Butt Connectors 18 to 22 Gauge Wire Red Color $5.95