Re: My turn, no start
I'm in favor of a bad connection somewhere, the connection to the starter motor, the battery cables etc.
I say this because when you put in the new battery the problem occurred at once it seems.
Maybe broken/corroded wires inside the cable.
Bad connections at the main 50 amp fuse area.
Disconnecting the battery usually lets you have three goes at starting the car then nada, I think that would indicate a SKREEM problem.
If you have not played around with the key(s) then I would say forget them as being a problem.
My thoughts anyway.