Navi 1205 + MP3 player connection?

Hello together, someone has experience with the Navi 1205 and connection of an external MP3 player? So far I have been happy with my iPod via an adapter cassette or chinch connection, but would like to upgrade the 1205 and have learned that this does not have a chinch. Can you use the connection of the Volvo changer? Does anyone have a plug assignment to make sense? If someone has already been successful with adapters or tiffing, help me on the jumps. Greet Martin