I am posting this for my brother Al in Vancouver.  Any ideas?

Bill,
I've been trying to replace the left top front door hinge on Mary's
Explorer but can't figure out how to get it off.  One of the bolts has
a nut that is inside under the dashboard and I can't see anyway to get
to it without taking out the whole dashboard.  Her's is a 1994 and in
1995 they changed it so that the nut was on the outside.  I've been
looking on the internet for advice but not getting anywhere.  Any
ideas?  I've spent a couple of hours tinkering at a junk yard but
can;t figure it out.  I could probably get it out by ripping and
tearing but what's the use if I can't get back in ours without ripping
and tearing.
Al