We have an 2005 359ts and bought it used as well. We got all the original manuals but no model specific data. Our dealer showed us those switches and as I remember sitting at home, there is one that springs back. That "blinks" the running lights as a thank you.
One turns on the front reading/map lights. Note they have individual switches as well.
One turns on the dash radio/CD player while parked with ignition off.
One turns on the defrost fans.
The horizontal one with the green light starts the Gen.
That's about all I remember right now. I will take a look next time I go over to visit the GT.
Life is a journey, not a destination.
2005 Georgetown 359ts
Bill & Virginia, Kentucky
Nights camped in 2011...78 , 2012...73,
Nights camped in 2013...123, 2014 ...101