i bought this cable to connect my ipod to the boss 648bi and i am very satisfied. it allows you to play your ipod directly through the stereo. it takes a while to get used to the controls on the stereo but it doesn't take to long to get used to. overall this product is a great deal.
In-dash AM/FM CD, MP3, WMA player with Remote • Motorized, slide-down/detachable face • Dual color illumination • 80W x 4 chan. Max • Full Control for iPod • 8x Oversampling