I have my iPhone3g installed in my truck with the Avic D3, iPod adapter, and the BT adapter. I just installe the BT tonight with the mic, so I'll let you know how it works. Also, I got some plug adapter thing from Ridax that makes my iPhone3G charge with the iPod adapter. 3g phones do not charge without it. I wanted to buy a mount for my truck, but the company did not accept pay pal, so I did not buy it. I made my own holder that seems to be working now, but I want a pass through holder so I don't have to plug anything in.
Pics to come after I get it all setup.