Electrical issue - signals, hazards, brake lights, buzzer

[xtrememeasures10]

---- 97' s 10 2.2L 2X4 standard cab ------
Ok so Today i was driving to pick up my brother, and my signals stopped working. I replaced my flasher for them last year so i dont think that could be bad again. Next i tried my Hazards. They didnt work either. Then i got out and looked at my brakes while i had someone hit them and the did not light up. also when i turn off my truck and leave the lights on usually the buzzer will humm. It doesnt work as well so..
Signals
Hazards
Brake Lights
And buzzer all out at once.
I check my number 1 fuse. 20 amp it was blown so i put a new one in and it worked for a good 5 min then popped again. It just keeps popping them. Any good ideas?

[amac209]

look for frayed wires near the tailights & under the box. also take a close look at any trailer wiring if present

[smokey041369]

also inspect the wiring harness that runs along the driverside frame rail for any damage to the plastic wire cover

[xtrememeasures10]

Ok so i checked the wiring by the tails and it looked like on the driver side the electrical tape had exposed the wiring. The insulation on the wiring was fine though. but i taped it up tight just to be safe. The wire cover looked fine all the way allong the frame rail. However my headlight switch wouldnt engage sometime now. so i took that apart and cleaned out the corrosion and now it works good. I havent blown the fuse again. hopefully that the exposed wiring was the problem. who knows, electrical systems are a pain.
Thanks for the suggestions smokey and amac