The cheapest way to do this would be to run an ethernet cable to the empeg. Since it's not going to be moving, there's no inherent reason that it needs to be attached wirelessly. Of course, there may be other reasons you don't want to run a cable. If so, something like this Wireless to Ethernet Adapter fits the bill. There are other similar products, and it's feasible that there could be compatibility issues, but any of them ought to work. I know some people on the BBS have reported compatibility with some of them, but I can't seem to find them at the moment.