Here's a project I hope someone better at photoshop than I am will take up:

Make full-face stickers that will fit on a kenwood remote and make it look like a riocar remote. The membrane keys should work right through a sticker, right? So it should be just a small matter of layout and adapting one of the many scans of the rio remote and then printing them out on sticky-back paper.

I'd pay a couple bucks for one, and I'm sure others would too.

--pj