a VirtualTourist member
I know that the bus company is Auto.res
where do they leave Madrid?
is it the bus station Estacion Sur de autobuses?
Yes, it's the Estacion Sur de Autobuses de Madrid.
You can buy tickets at www.avanzabus.com
Yes, and in Madrid, for Estación Sur, metro: Méndez Alvaro (line 6)