The CDRS77 does indeed work.... Althought I think it has the same problem you are encountering. The repeat coming off of the remote appears to be about 1.4-1.5 time that of the kenwood. As a result, unless you are REALLY light on the keys, it's pretty easy to get a couple of hits registered, instead of one.

Felt like I was playing piano with a pair of mittens on. Sure you are going to get the key you wanted, but chances are, you'll also hit a few you didn't.

It would probably be fine if you could ignore every other IR input.

I didn't buy it, based on this. But I have to say, the salepeople were damn impressed by the unit sitting on the desk scrolling through 1000+ songs.