1975 Mustang 2 4 cylinder starting problems

This car is a 1975 2.3L 4 cylinder. Anything
between 73 and 79 wasnt an option on the car
select

I took the distributor cap off and cleaned the
carbon off of the distributor cap points and once I
was done no start, just the occasional backfire.
Got a new cap and stuck it on. No dice. Needed to
replace spark plugs and ignition coil so I went
ahead and did that.still no dice. After having
messed with so many things a plug going to the
alternator that was wrapped in electrical tape
came undone and i dont know how it goes
together. It has 4 holes that look like an electrical
outlet with pins that plug in the same as a cord
would but separate. Now nothing at all works. I
used a volt meter and I'm getting 2 volts to the
alternator after plugging them in how I think they
go but nothing works on the car. I dont see an
ignition fuse or anything on the fuse box under the
dash driver side.. The dome light doesnt even
work. Any ideas?