Check both sides of the radio fuse to see if you have any power there. If you do then the problem lies in a wire from there to the radio. Don't know where the buzzer gets its power, may be from the same source as radio...can't recall what makes the buzzer go off, was it seat belts ?......if so there might be a problem at the seat belt.
I don't see a fuse in the radio slot..
2013 WRANGLER SPORT 2 DR., V-6 ,AUTO,HARD TOP
)1994 Jeep Wrangler 2.5L, Bestop top
/w steel half door and slider windows
5 speed, 2.5" lift, 31" tires,rack lights