iPod/iPhone USB Cable: The KCU-445i allows you to connect your 30-pin Apple iPod/iPhone to select 2009-up USB/iPod direct compatible Alpine head units. The KCU-445i consists of a 5′ USB extension cable terminated by a male USB type-A connector on one end, which plugs into your compatible Alpine head unit’s USB port, and a female USB type-A connector on other end, which plugs into the included 8″ iPod dock connector cable. The iPod dock connector cable features a male USB type-A connector on one end and an iPod dock connector on other end to connect your iPod. The included 5′ USB extension cable is convenient for compatible Alpine head units with a rear-panel USB port. The 8″ iPod dock connector cable can simply plug into the front-panel USB port of a compatible Alpine head unit.