(Upgrade your 30-pin docking speakers BLUETOOTH) Ricco Bluetooth 2.1 Wireless Receiver with 3.5 Aduio AUX OUT Adapter 1.2 A2DP AVRCP 1.4 compatible for Apple 30-pin dock speaker with all iPhones iPads iPhone5 mobile phones laptop PCs (Electronics )
The pairing worked with a Nexus 7 and a Nexus S, but the audio transmission does not work for both. Therefore not seem to be compatible with the system Yamaha CRX-040.