Not sure if its alt/starter/battery

I was told my my father in law, that i should have my wife try and start it and att he same time tap the starter with a happer and see if it starts. My father in law was a mechanic, do you guys think this is a good idea?

good point, thanks for the help

is there anyway i could test to see if it was the altinater? Im just hopeing its one or the other and not both.

If you turn your headlights on, are they bright? If you try to start the car with them on, do they stay bright? If no to one or both of these, it's probably a battery or connection problem. If yes to both, it's probably the starter.

-jim

I already replaced the battery yesterday so that should be good. I cleaned the connecters with a wire brush. Lights don't dim and everything inside works fine including the radio. If i turn the radio on and turn it loud. Nothing dims clusters work fine and i still get readings

I Have aftermarket speakers so i figured it would draw more power then factory system.

I recently tried jumping the car with my friends truck. Nothin happened.