I posted this in another thread for the smokey mountain video but i think its more appropriate here so excuse the double post:
Hey ive noticed something that might be of help to you guys trying to crack this GEM but with the following codes ive noticed that SMOKEY MOUNTAIN NRTH has two extra lines of code:
_G Gran Turismo [US]
_C0 Circle60PS2
_L 0x2080F440 0x0000003F
_C0 SmnorthPS2 (External Cam)
_L 0x2080F440 0x00000030
_L 0x204DD454 0x00000001
_L 0x204DD45C 0x00000001
_C0 GymkanaPS2 (Time Trial)
_L 0x2080F440 0x00000087
basically what im saying is maybe these codes that AREN'T working need a sort of SUB code to get them happening
i know some are showing maps and lighting but surely theres more to it
thought id atleast point out my find if it is of any use