98 honda civic electrical?

Ok this all has happened within the past 3
months or so.
From the begining - i accidently drained
my battery by charging my phone and
tablet several times over a weeks span
with no driving.  I jump started it with a
"battery box" or portable jump box. Drove
it 200 miles and no problems.  The
following day the srs light was flashing
and the radio completely lost power twice
while the car was being driven.  I put a
trickle charger on the battery and checked
the water in the battery.  There was a
ground wire i noticed that was corroded.  
The wire is located along front drivers
side and ended near the latch to open the
hood. I changed it with a new one. I then
drove 400 miles with no problems. I get to
my destination and i smell an odor of
rotton eggs. It was my battery boiling over
and steaming.  Parked the car.  Next day
bought new battery and had the alternator
tested.  Alternator is only 3 weeks old.  
Battery tested fine. Alternator showed low
voltage.  Exchanged the alternator.  
Everything seemed fine all day. That
evening the speedometer completely
stops working. Its flashing codes for the
eld and both 02 sensors.  Got eld from
junkyard and purchased to new heated 02
sensors.  Mind you the CEL is on the
whole time since srs light started. Still
same codes and fuse 15 keeps blowing.  I
had just had the corroded wires under the
manifold taken care of three weeks prior
to these events.  Now im getting code
501 and the sensor codes. Today i was
waiting for a parking spot to clear and the
car just dies.  No reaponse when touching
the gas.  The radio died twice today while
driving.  I was jumped and i parked it for
three hours.  When starting it fired right
up.  About 10 missing utes into my drive
going up a hill. No warning im pressing
the gas and the car is not going. I pull to
the side and it dies.  The lights started to
dim only seconds before this happened.
The battery was so dead my caution
lights wouldnt turn on.  I was jumped
once again. This time it took several
attemts to get it started.  It didnt even
make the clicking sound of trying to start.  
My speedometer still doesnt work nor the
odometer.  I just know its gotta be a bad
connection somewhere. Please help i am
at wits end ready to set the car on fire!! It
only has 80,000 miles on it!