Bluetooth Wireless Music

[M GO BLUE!!!]

Has anyone ever set up a wireless music network?

I have a couple of older Logitech Music Anywhere receivers & the transmitters (one from USB, the other from a headphone jack) that I hadn't used in some time. I wanted to upgrade & bought a Sony Bluetooth audio receiver/transmitter. It seems to have the same issue I took with the Logitech... that you can only listen to music off either the wireless device OR the speakers plugged into the sound card. Not both. So there is no just going into the kitchen and turning on the radio there and hearing the same thing as in the living room. (Plus this thing seems to be malfunctioning, as it is constantly in and out.)

I'm near just going to Target to buy a 50 ft headphone extension and a splitter.