The Alpine CHM-S601 CHM-S652RF 6-Disc CD Shuttle Changer is a vintage old school car CD changer designed for vehicles with compatibility for CD formats. Manufactured by Alpine in Japan, this changer has a disc capacity of 6 and is compatible with the Shuttle vehicle model. Its M-Bus interface allows for easy connectivity and operation, making it a reliable choice for car audio enthusiasts looking to enhance their listening experience with a retro feel.