My guages arrived yesterday. I have the egt and the boost guage figured out. My question is how do I hook up the trans temp guage. I have tried to do the search but have not found what I am looking for. Any help would be great. thank you in advance:)

your truck has one maybe tie into those wires??

Here's some information. Don't know if it will help. I have not added another one but saw this.
http://www.automatictransmission.com.au/release.asp?NewsId=12031

...and here's another one.
http://www.dieselplace.com/forum/showthread.php?t=2445&highlight=%22transmission+temperature+gauge%22

The best place to put it is in the pan, but that requires welding in a bung. Aftermarket pans like Mag Hytec come with a port built in. I did not put the trans temp gauge on my pillar because the one from the factory works good enough for me.

I installed mine in the overhead console empty box. I installed the sensor in the pan, i welded a bung in and it hasnt leaked in 40,000 miles.

Best place is in the pan. Also the toughest.