E44 - 318-2 Barrel
D13 - 3-Speed Manual Transmission Floor
J - Dodge Challenger
H - High
23 - 2 Door Hardtop
G - 318 150HP(net) or 170HP(net) 1-2BBL 8 CYL
3 - 1973
B - Dodge Main, Hamtramck, MI, USA
499041 Sequence Number '499041'
FE5 - Roof Type OR Color: Bright Red / Rally Red
A6X9 - Black Bucket seat interior (Not sure what A is)
000 - Full Door Panel
525 - Scheduled build date?
118 - ?
VIX - Black Vinyl Roof
U - Built to Specifications for USA Order
B43 - Manual Brakes
C56 - Bucket Seats
G36 - Left Hand Remote, Right Hand Manual Outside Mirror
M21 - Roof Drip Rail Moldings
R11 - Music Master Radio AM
V7X - Black Accent Stripes
EN2 - End of Codes Assembly Line 2
Someone fill the two gaps please, I need to update my codes.