$3.65 + Registry Hack = TV Out
 

Good news. I found the magic registry hack. With the hack, all that is needed is the original -unmodified- multi-adapter that came with the Touch Pro and a cheap ipod 3.5mm AV cable (i.e., http://www.amazon.com/Macally-Audio-.../dp/B000GGQ2ZU).

Simply plug your ipod AV cable into the 3.5mm port on the multi-adapter, plug the adapter in the phone, and set the following registry entry to a value of 1:

\HKLM\Software\HTC\H2W\TVOutCableIn

Immediately after it is modified, the Video Out format selection will pop-up. Select the proper format for your display/TV, and it should immediately show up on the big screen in beautiful color with perfect sound.

When you disconnect the multi-adapter, the value of the registry entry will revert to 0.

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IMPORTANT NOTE: Apparently, not all 3.5 to RCA AV cable have the same pin-out as iPod compatible cables. You must use iPod compatible AV cables or hope that you get lucky with whatever you've got lying around.
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Software Update (3/4/09):

Added a few cabs for those that don't want to search the thread. techfury90 provided EnableTVOutCab.CAB to flip the registry setting. *TVOutPopUp (OEM and cab), provided by Mylt1 and Mr. Good Cat respectively, add the TV Out Popup if your custom ROM doesn't already have it.

Re: $3.65 + Registry Hack = TV Out
 

certainly easy enough isnt it lol.. good work

edit: your link isnt working..

Re: $3.65 + Registry Hack = TV Out
 

Good find. Even though i have 2 ATC-110 cable already. I will try out this hack.

Re: $3.65 + Registry Hack = TV Out
 

Works perfect, your 3.5mm video cable has to be a stereo one, i have a stereo and a mono one, the mono one gets weird picture issues...

Thanks!!!!

Re: $3.65 + Registry Hack = TV Out
 

thanks fopr sharing bro awesome!!!!=D>=D>

Re: $3.65 + Registry Hack = TV Out
 

Great find this will keep my wife from griping that i was going to spend money on another accessory

Re: $3.65 + Registry Hack = TV Out
 

To be quite honest, I just did a registry search for TVOut and tried the first one that looked like a potential winner. I got rather lucky.

Re: $3.65 + Registry Hack = TV Out
 

Whoo you're the man. Thanks!

Re: $3.65 + Registry Hack = TV Out
 

Thanks for the info!

Re: $3.65 + Registry Hack = TV Out
 

Thanks! Just ordered a cable. This better work LOL!.