W203 (pre-facelift) - Audio 10 - Adding Phone Feature and Aux Input help

Hi,

I have just bought 2002 C200 kompressor. It has the Audio 10 head unit, but I don't really use CD's anymore. So I was looking at upgrading somehow...

The 2 main features that I would like to add are:
Aux input - This is the most important.
Phone feature - if it works out too expensive/too much hassle I can live without it.
Any other features (i.e. Navigation) would be a bonus.

The other catch is I want it to all look manufacture fitted or as close to it.

I've spent quite a lot of time researching it all, but I'm just getting bogged down so I need some help.

I was initially looking at the Comand 2.0 upgrade. These are going for around £350 on eBay. Will this do what I want with the phone and aux? And it is quite an old system, is it worth it? Are there better alternatives or ways round this?

I also saw the Dynavin MC2000 which looks very much like the Comand system, but newer and with more features. But it's £630!!! Way above my budget! And I can't find any used ones anywhere.

I am also open to after market double din head unit ideas, just remember the oem look ;). The Pioneer P3400BH looked quite good, but I don't think it's available in the UK.

And finally, it I can't get what I'm looking for, how can I add aux input into the Audio 10? And are there any decent after market hands free solutions that integrate with the Mercedes?

I look forward to any input.

Thanks
JM