Won't start or crank. Clicking in the dash (I think) no start with jump box. Had 9v dash lights would dim trying to start. Put trickle charger still won't start after 2 days now 0v. at 15 v last week

15v was after jump from a car. No volt
meter to check. Battery, alternator or
starter? Not anti theft, key turned and
doesn't crank. Serpentine belt good.
Thermostat is stuck open. Full pump
always buzzes. Money in it already, learning
how unreliable they are looking everything
up. Shakes above 30 and needs brakes all
around plus mysterious issues also. Any
info would be helpful. I think its a drain, alt
or starter idk...