Hi mate
I havent got Highline but i do have a OEM ipod adaptor in the armrest.
No it doesnt show track names only track 1 2 3 4 5 etc
No you cant operate the ipod menu through the radio controls only select 5 preset playlists set in alphabetical order and then the whole music selection on the ipod In the 6cd changer format.
So instead of having disc 12345 you have your 5 preset playlists then slot 6 is taken up by the whole singles list.
so if you want to select a album or sng in particular you need to remove the ipod select what you want the re insert the ipod.
Hope that helps