Fender Tag & Build Sheet Decoding

The two Q5's are for body and roof color.

The X9 after the interior trim codes is the upper door frame color.

G33 is the remote mirror for drivers side.
Here's the salesmans guide page for 69 Darts. Upper right.
http://www.hamtramck-historical.com/images/dealerships/SalesmansPocketGuides/1969/69_Dart_3.jpg