Yeah, Yamaha is very vague in regards to auto trigger function on their receivers, they make no mention of this function in the manual.
However, here is a response I got (a while back) from Yamaha Customer Service in regards to auto trigger function (quote):
"The RX-V Series have a 12v 15mA max ouput trigger and sends out that signal upon powering up or when the IR code is sent off. It normally goes to a relay that would power up a screen, dim the lights or turn on a second amp. It does not have any remote control capabilities. If you have any more questions please feel free to contact us at our toll free Customer Support line. 1-800-292-2982 Hours: Monday Thru Friday 8 AM to 4 PM Pacific time.
Essentially the receiver outputs a pulse at power-up and power-down. If you have your amp (or device) connected to one of the trigger outputs it will power-up, or power-down, as the receiver does.
You want to use a simple (3.5mm or 1/8in) "mini-jack" type connector/cable (similiar to this one at Radio Shack):http://www.radioshack.com/product/in...entPage=search
Also, BestBuy carries a generic brand 3.5mm mini-jack selection (I believe it's "Recoton"). Here's the sucker right here:http://www.unifireusa.com/retail1/it...lkNO=1090-1551