I know it sounds silly, but I cannot find the big fuses that are supposed to be under the hood... I have a 93 blazer. I just want to change them out to make sure everything is fine because my new stereo isn't getting power. I already checked the small fuses under the dash.

 

There is not an under hood fuse panel on your 93.
All the fuses and relays (minus a few relays on the firewall) are inside the vehicle under the dash.

 

yeah i second this. ive had my 93 for over 10 years and never seen them. as rich said theres like 3 relays on the back wall, a/c fuel pump and something else.

theres probably some fuseable links under the hood but if those were blown the truck would start or you wouldnt have any power inside

im talking about a s10 blazer anyways, no idea on the fullsize 93 blazer