..( Battery, Alternator, Starter) already weeks ago and it's functioning fine even thought the battery is down to it's last 25 percent of life.
So the car wouldn't start, no lights, nothing...Firs
t thing I checked was the battery connection and it's tight and good. I was like hmmm...What can it be??

Well after checking a few things with my circuit tester, it turned out to be a ground issue. The negative cable ground that's connected to the inside of the fender wall in the engine bay has lost some contact due to age, dirt build up, etc.
So I relocated it to a top strut mount bolt. I wanted maximum contact so I grind the paint off so it'll be a better connection with metal to metal:




