Syalling out as i drive , flashers blinkers anf ash ligjts quit working

I have a 99 Ford Explorer sport that is
stalling while I'm driving it began by stalling
whenever the AC was on if I turn the only
other like it's never stopped but if I turn the
AC off it would drive fine then it started
darling with or without being seen now it
shutting off and as I'm driving I've replaced
everything that I can think of I need a
diagram of the upper intake valve gasket.
Also my dash lights were flickering then they
went out and now that I have no dash lights
no blinkers no hazard lights or anything. But
all your check lights like your check engine
lights and your oil lights that comes on as
you start up the car this is the only one what
could that be. Now there's a box I believe the
relay box right that is located underneath
steering wheel and behind where you plug in
to get your computer codes with the check
engine light on behind there there's a box it's
got a male and female end someone took
off one of the end could that be related to
my blinkers my hazards and where would I
find that other part of the box by the way the
name of my Explorer is Christine the
possessed Christine remember the movie!!!