iPod iPhone Cable for Alpine CDM7857 CDM7861 CDM7871 CDM7874
CDM7857 CDM7861 CDM7871 CDM7874. This cable connects iPods to most Alpine M-Bus head unit. Alpine units must have M in the model number (CDM-, TDM-, etc). One end is the iPod male connector, the other end is the Alpine MBUS connector.