ipod text ??? on sat/nav Help!!!! a lady please!!!!

[Scottie]

Ok I've got the sat/nav set up and have cleansweep and aftermarket speakers.

Decided to get a ipod done so denison icelink now in boot connected up instead of the cd changer everything works perfect but only thing no text comes up on the screen it just says now playing or external source (need to check again exactly what it says cause I might be getting mixed up with what it says on my 1'er)

anyways I've not got the proper text what have I done wrong.?????