This is either my second or third ever vanity. Any advice, links, ideas or suggestions are most welcome.
I also have a tv/fm card, and a computer controlled am/sw radio
plugged into the line input.
And, the xmitter (and radio) is plugged into the power station.
In my case, what I do is simply turn the xmitter on from the power
station, set the speakers to quad, launch the whatever
outputting media app, and I'm good to go, even outside, within
reason, with any fm radio.
Everything you will ever need to know about speakers is in the film “Ruthless People”:
http://www.youtube.com/watch?v=19CvEO3Riy0
(Not Safe For Work)