My son's 2010 Charger SRT8 wouldn’t start one day (out of the blue). It would just click. Tried to jump it (thinking the battery was dead). Still didn’t start. Tapped on starter and it started. Later that day it did it again. Replaced the starter. It started fine for a day or two then it started acting up again. Replaced the battery. It still did it. Replaced the starter again. Still did the same thing. Read up about start relays going bad. Replaced both relays, but it still does it. Checked voltage at starter switch wire and got nothing. Unplugged the switch wire from solenoid and got battery voltage. Removed starter and bench tested. Starter worked fine. At a loss right now. Don’t know what could be wrong with it.