Hi, I have hooked up a Marantz MM9000 amp using my Sony DB-930 as a temporary preamp. Does anyone know of a way to use the Sony to trigger the MM9000 to turn on? There is a 12v trigger, and a video signal trigger on the MM9000. The Sony has a video output, but I do not use it for video switching, so there is no signal out. Marantz tech support was no help. Does anyone have ny ideas? Thank you very much in advance for any help.