Andrew,
For a US '83 ur-q (main fuse panel below steering wheel):-
Fuse 6: Stop lights and emergency flasher -8A
Fuse 7: Cigarette lighter/clock/interior light/vanity mirror/trunk
light/radio and antenna -8A
Fuse 8: Turn Signals/indicator lights -8A
Fuse 9: Back lights/cruise control -8A
Regards, Mike