Sprung for the Sound Bar (DBRX1) during my initial Dish installation. I've moved and wanted to add a pair of DSR3 speakers that I can move to my patio, which is very close to the sound bar. My sound bar does not have the wireless adapter plugged in. I found some old User Guide for the speakers which stated under "What's In the Box", "Wireless Adapter" and even showed where to plug it into the back of the soundbar. Now I'm being told by Dish that these speakers do NOT come with the wireless adapter, and I would have to add a Sub-woofer to get the adapter. So, I'm wondering if the plug-in wireless adapter is available stand alone?