Bed liner the cab.

[mcmlxix]

Lizard skin with ceramic on the bottom of the tub for heat protection. You can paint over it too...

http://www.lizardskin.com/car-ceramic-insulation.html



Inside, if you can afford it, Line-X. It can be color matched. Depending on the truck, you could do a light grey in the bed or an accent color.
Should act as a sound deadener and easy to clean. You can add carpet over the top in the cab section. I went with black inside (I'm in Las Vegas NV) and I actually used Line-X on the exterior of the entire truck, but in white.
It's not done yet...


http://www.linex.com/pages/2010/bedliners/index.php