Hi! you could try a store near Souq Asisri (SINGER was the name i believe), it's just beside a music store. See link here: http://i13.photobucket.com/albums/a263/jahrock/MAP.jpg

And try also Al Rawnaq at Souq Asiri. See link also for getting there (note: in the map go to Rawnaq 2, not Rawnaq 1 coz they just sell bags there.. unless you're interested in them too:) link here: http://i13.photobucket.com/albums/a263/jahrock/MAP-2.jpg

hope this helps.
Good day.

-j