94-98 ? 94-04 fourth-generation

I own 94 Ford Mustang convertible basic 3.8l.
232 cu.in. 6 speed auto trans engine and trans
have less than 400 miles on them when I found
a serious problem under the car where
replacing was the best option I was staying
between 94-98 model years I'm not sure about
94-04  my goal is to stick everything in the
replacement car yet I did not know if a GT wiring
would be the same or I should stick to trying to
locate a basic convertible between 94-98 I didn't
know if 99-04 would interchange everything on
my car is immaculate except the undercarriage
but I didn't know if I could use a GT to put the
engine in without major electrical surgery I
thought perhaps by reaching out to those of you
here you might be able to help me I just wanted
as an everyday car so my first question would
be the electrical are they basically the same I
know that in some instances you can take the
engine wiring out with the engine to cut down on
time I just can't seem to find the answers I know
this is strange but there's not one YouTube
video on removing A v8 and installing a v6 of
course this isn't the norm but at least I would've
thought somebody would've done it right now I
could use all the help I can get I've been
searching your sites for used car and the others
I wish I knew  if the GT electrical was the same
or not it would make searching a little easier so
right now I'm just sticking to 94-98I've searched
all over YouTube I've searched the Internet the
norm of course is to take out a smaller engine
and put in a larger one this in fact is what I did
to my 86 Cutlass the V6 was removed and I
installed a three-quarter cam 455 electric
kickdown trance with stall and B&M shift kit etc.
etc. yes this is the norm so let me pose a
question search the Internet search YouTube
search everywhere and locate someone
removing a V8 and installing a V6 3.8 L 232 CU.
IN. Engine my problem right now is trying to find
out information regarding 94-98 or 94-04 I own
a 94 3.8 convertible Mustang the engine and
trans has less than 400 miles on them and
numerous other new parts when I found the
problem so I'm trying to find a replacement to
put everything in I can't find the information
regarding GTs and their electrical system (are
they the same) or can the engine electrical be
removed and interchanged with a GT I do not
want to get into major surgery I have other
projects this is just my everyday car but I don't
know if the basic electrical is the same as the
GT electrical or should I just stick to searching
for a basic 3.8 convertible you know the old
saying in for a penny in for a pound I just got too
much invested to call it quits but I just can't find
the answers necessary to make this easier I've
even tried calling several Ford dealerships they
refer me to local junkyards explaining they do a
lot of engine swapping this is almost as bad as
when Oldsmobile created the diesel and within
one year of ownership people wanted us to put
gas engines back in I guess the point of my
rambling is everybody and their brother has a
YouTube video on removing a V6 and installing
a V8 engine
I can't find anywhere where someone has taken
out a V-8 and installed a V-6 take a look you will
not be able to find one because it's just not the
norm so I'm keeping my search to the 94-98
convertible basic but does anyone out there
have any idea about the GT electrical?