Very nice, Mikey. But just so I'm clear, your adaptor also serves as a replacement for the "Advanced Mute" connector offered by Sony Ericsson for the HCB-30? Sadly, I've chopped off the plug from the HCB-30 base unit since I had to splice the wires, is it possible to splice the wires into your adaptor? This would still be much better than the hack job I have at the moment...