David: I'm running a 509 in my bedroom system. I tried using the remote for a few days and did not like it. IMO, if you don't need the r.f. portion, go to Sears and buy a Cinema 7+ for around $24. The C7 will control everything you have and, capability-wise, it will run rings around the Kenwood remote.
Take a look at this website. The best $24 item in home theater... http://www.hifi-remote.com/ofa/index.shtml
------------------