You would be better off to install yourself. I did it on my 04 and it was easy. Take your time. Took me 1 hour and 2 beers.Flassh said:Install is easy, and if you can work with basic tools, you ccan install it yourself in an hour or so. Toughest job is cutting the carpet, and removing the padding underneath so the gauges will allow the ashtray to open.
The gauges themselves just plug into a harness that is already in place.
Not sure what a dealer would charge, but anything over an hours would be excessive.
Make sure you get the gauge set for the 05-06 trucks. The gauge set from the 03-04 will not work.
Do a search under auxiliary gauges - instructions on the process have been posted there.