For those 1-Gen Tundra owners looking for a good stereo solution, I just installed a Sony CDX-GT700HD I purchased from Crutchfield. Might be able to save a few bucks buying somewhere else, but I did the install and it was a piece of cake. Last stereo I installed was in a '69 VW Bug 20+ years ago so I was a bit apprehensive, but with the great Tundra-specific instructions, provided harnesses, and excellent tech support I got it in the truck in a little over an hour.
Nice having USB connection for iPod and HD radio. Interesting note, my stock Toy radio was made by Panasonic.
Check out Crutchfield if you're interested in a new radio!