Rich,
Which floor plan coach do you have (I don't recognize the "MPVT 40" nomenclature...the 2006 and 2007 models were the T40A, T40B, T40C, T40D and T36.)
You can look at the attached brochure excerpt to match your floor plan to those listed to help us use the same nomenclature when describing your coach.
I did a replacement bedroom TV in my 2007 Tour Master T40C and that thread is here:
https://www.gsowners.com/forums/show...hlight=upgrade
Look at post #10 in the thread...
Chuck