That is exactly what happened, it started fine right away, but the next day it had trouble starting up. & this started as soon as I installed the new sub. I was using the same amp before and it never gave me problems, maybe I burned something in the amp more recently I don't know i'm honestly just throwing random **** out there.Clicking means there is some power in the batt but it's nearly dead... either it's not charging (should be 14+ volts while running) or something is not powering down with the car and draining the batt. If you run it for awhile and stop does it start right back up but overnight it has trouble starting? Is it random? Does it do it all the time?
Have your battery LOAD TESTED. A totally dead battery can still read mid 12V on a DMM. That is NOT how to properly test for a bad battery.Yesterday it was just making the clicking noise and not even hinting that it would start up, today it has been doing both, This morning it made the clicking only, then after a few tries it started making the sound like its trying, and it eventually turns on. Either way its bothering the hell out of me, and i'm extremely confused. Process of elimination tomorrow, I need to develop a checklist of sorts. Checking all the grounds first.
Also to answer a few questions, My amp remains off when my car is off, I am using the same amp.
& buck, what do you mean by bad capacitors? expand on that I think I get what you are saying just want to clarify.