Does the starter work when you jump the two heavy solenoid terminals?
Could be a bad starter, drawing too much current.
Could be a poor ground. Unplug both small terminals. Ground one, then jump the other to the bat + or the heavy bat. terminal. The solenoid should work.
Did you check all the battery cable connections?
" But let me tell you something ,folks: You can't fix stupid! There's not a pill you can take, there's not a class you can go to. Stupid is forever!"