For anyone that doesnt know what Speedwire- it is the blue cable at the top of the picture. It has 9 wires (8 speaker wires and one remote turn on). The wiring of the speedwire matches the wiring that goes into the factory harness. Makes it so you do not have to run wires into doorpanels, an alternative to 4 seperate runs of speaker wire. Offered by Aamp of America (Stinger / Best Kits and Harness)... sorry if I sound like an informercial :0)