The StereoLink Car 1/8" Mini-Stereo Plug to 1/8" Mini Stereo Plug is a premium-quality, 7-foot cable configured for attaching a Zune (or other MP3/audio devices with 3.5mm headphone jacks) to an auxiliary port on your car stereo system. Monster cables feature twisted-pair XLN technology for superior noise rejection, 24-karat gold-plated contacts for greater signal integrity, and split-tip pins for increased contact pressure.