i have a 100A fuse Box.A brick veener that has the meter base box covered but meter shows.I would like to put in a sub panel in a shop appx 40 feet from house.

Can I connect to this fuse box? If so, how?

What size sub panel,wire,& I suppose underground is the way to go.You Can't go back out the same weatherhead, right.

I need some good help.