Overview: The KCM-123B means that you can adapt the CD changer input of any Alpine Flexible-Backlink-Prepared M-bus head device to a minijack stereo connector; not all M-Bus head units are Multipurpose-Link All set, so verify compatibility right before seeking to use this adapter.x? s? tr?c ti?p mi?n b?c th? t? hàng tu?nSau ??i h?i twenty ??ng C?n