I just got a receiver for my office to replace the one there - massive change going on that system is getting a big overhaul. The new receiver does not have a phono preamp built in so I was planning on purchasing something like a Rolls VP29. Question: Could I use the 12v trigger output as a power cable to the Rolls? Sure would be slick if I could do that instead of running a wall-wart. I've used a wall-wart connected to the switched power outlet on the back of a receiver before, so I figure why wouldn't this work?