Some of these bulbs can be bought online and others must be bought at the dealer.
The best sources are www.thesaabsite and www.genuinesaab.com

Here is a list of the bulb part #'s and the switch they go with:

Click on the component to jump to the replacement section.

Part #	Component
	Parking Lights
	Directional and Brake Lights
	License Plate bulb

Rear Lights

License Plate Light