"Here is a link to the manual. Thanks for the pur ... " (more)chase. https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.sonicelectronix.com/item_63932_Sony-CPA9-CPA-9C-3.5mm-Car-Mobile-Cassette-Adapter.html&ved=0ahUKEwjSxrefjeLVAhUX0IMKHYVTCv0QFghVMA8&usg=AFQjCNFI5l9z0Q7K86RcDQxidCbWPO0E8A"