I have gone on the internet to check out what I can do to go from RF to IR remote and these old units tell you you need to buy a IR9991 which is only 220 plus on the market. I have seen in the old forums here that a few people with Kenwoods have talked about Xantech 291-10 but after that there is no more communication as to if they worked etc. the concern is that they are a dirfrent voltage etc so I was wondering is there any one out there that got something to work