Ipod, Summary and other questions

[Gwegz320]

Hi Everyone.
I'm from Belgium and I don't understand all in english, so i made a treath to know if I have all correctly understand and to keep some tips from you.

I have one bmw 320CD E46 from 2005, equiped with a 16/9 screen MKIV and, navigation system and 6cd changer.
I want to install my Ipod in the BMW.

So i have read that this forum propose 2 solutions!
The dice and the intravee II.
I WANT ID3 TAGS, so the intravee looks better for that, but more expansive, 250$ the intravee and 75$ the KCA-420i...

So, I just have to buy The intravee II and the KCA-420i, that's it?
Other questions, I presume that I can't use my bmw cd changer with the KCA-410C? If I want to use cd changer i have to buy a Alpine CD-Charger?

Just a last question, sorry, but i use original cd who have id3 tag on it, my last pioneer radio show me information about traks, and here in the bwm nothing appaer, just track 01... It's the same in the cd charger and in the console. Is that normal?

Thanks in advance for you response.

EDIT : I have the Harman / Kardon installation, any problem with Intravee or others things for the connectivity?