Select F0: Diagnostics

Select Model year

Select Saab 9-3 Sport (9440)

Select F4: All

Select F7: Add/Remove

Select F3: Accessories

Select AUX-Input

Select Add (Tech 2 will prompt for security access)

Exit out of the Tech2, cycle the key off and back on and the function should now be enabled. To enter AUX, use the SRC button (Source) on the steering wheel or press the CD/Disc-button on the stereo unit twice.