There are 3 rocker switches on the dash next to the leveling panel, far right switch turns on the coach stereo when key is off (I figured that out), the middle switch is an on/off switch for?, far left switch is a momentary for?
We are new to the 2004 too but as I recall - radio, map lights (also turn off on the fixture), coach jump start and running light flash (think trucker thank you), not necessarily in that order.