Discovered a glitch (this does not occur on the Ifrit) wherein you shoot the two bottom lamps out on the hunter and the internal lighting automaticly switches off.
Video below shows thorough testing, disabling each light, checking the interior and repeating.
Spawn a Hunter at night, turn on lights, eject, shoot out the two headlamps, climb back into vehicle and observe dash lighting.
This issue appears to have been resolved, also noticed that shooting all lights out still does not turn off the interior lighting, well done.
The video has also been removed.