dude they dont know what theyre talking about, pretty sure since the TP1 HTC has been using the term EXT USB.. that means extended USB.. it has an 11 pin configuration(i think its 11) for audio/video out.... I use Video-Out daily on my TP2 and obviously audio works or i wouldnt use it lol...
PSA: HTC's ExtUSB Works with Regular MiniUSB | WMExperts
heres the cord ive been using
http://forum.ppcgeeks.com/windows-mo...0-shipped.html
but the last link i found in my earlier response looks to be the better answer for your needs