Car Kit on steroids

[iamhrh]

I'm looking to build a connector for my XDA for the following simultaneous purposes:
1. Connect To a USB connector for HotSync with a Computer
2. Charge the XDA
3. Connect to my car stereo's aux input / a mic (homemade car kit ;))

I'm not looking for anyone to build it or anything, I just want to know what pins to connect to what, the connector tutorial confused me a bit (haven't had all my classes yet...:O)

Thanks for any help!

[cruisin-thru]

The starting point would be a usb syn/charger cable and a lighter plug adaptor, you then have the basics of what you need.

[iamhrh]

And the best place to get a sync / charge cable would be...? Is the one on t-mobile's website the one I need or am I going to have to build one? Thanks for your help

[cruisin-thru]

Ebay is cheapest.