Receiver accessories.
Check the manufacturer's sites for bluetooth compatibility. Some of the Yamaha receivers offer an adapter and some newer pioneer models will have this feature built in.
The PS3 has bluetooth built in for use with the controllers, but I am doubtful that it will work with your MP3 player. Unless you arlready planning on purchasing a new receiver, a smiple cable or dock will be the best way to interface your MP3 player.