Yes, they are in stock locations. Not that odd really. A lot of luxury cars, and cars with small dashes have speakers in the doors.
Here are the 4x6 speakers:
http://www.crutchfield.com/cgi-bin/S...SG4647&o=m&a=0
I'm not sure which 6x9s speakers my local audio shop has[they have blue ones and white ones].