Try To Change A Fues Under Dash

I'm one that love to do it myself when it come to most repairs, I never thought it would be so hard to change out a little blown fuse under the dash. Oh my GOD, It ain't easy and you have to know which one it is. I was changing a bulb in trunk and putting that back blew a fuse. I haven't figured out which fuse blew and they are hard to reach any help please.