I'm looking for the serial protocol description for my SONY STR-DA5200ES AVR. I'm using it as a pre/pro (with powered speakers), and am controlling it with a URC-950MX, which is great, but I'd also like to hook it up to the Mac Mini that's sitting right next to it and have the Mac do certain controls.

Anyone know where I can find one of those? There is a program called ES-PressO which appears to do serial control, but it's for Windows only, and source code is not available.

if you send me a email i shall send you the document your after.