Alpine INA-W900 Owner's Manual page 97

Ground Lead (Black)
Connect this lead to a good chassis ground on the vehicle.
Make sure the connection is made to bare metal and is
securely fastened using the sheet metal screw provided.
Right Front (+) Speaker Output Lead (Gray)
Right Front (–) Speaker Output Lead (Gray/Black)
Right Rear (–) Speaker Output Lead (Violet/Black)
Right Rear (+) Speaker Output Lead (Violet)
Left Rear (+) Speaker Output Lead (Green)
Left Rear (–) Speaker Output Lead (Green/Black)
Left Front (–) Speaker Output Lead (White/Black)
Left Front (+) Speaker Output Lead (White)
USB extension cable (Included)
AV extension cable (Included)
USB 30P cable (Included)
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