Rep Power: 0

i just bought a 2008 honda civic coupe 2 weeks ago. I just got home and had to leave again. When i went to start the car i turned the switcg on n all the light came on normal but when i went start it everything went black. i had someone try to jump it thinkin i left something on, still nothing. came bck out 20 min later and the lights came on with the switch on but again everything went black when u turned it over, then i noticed the red led circle light continuously flashing on the dash. i changed the battery on my car keys and the secuirty syatem that wasnt picking up my key went off acted like it was fixed but now it still wont start n doesnt act like its even trying to start. but the lights in thr car and dash work fine. please help

 
Rep Power: 518

Is it still doing this now?
Bad connections at the battery, battery terminals and cables, or negative cable attachment point on the frame is all rusted resulting in a poor electrical connection

also the starter may have failed.

 
Rep Power: 0

So you're saying that the two problems could be unrelated. There was a thick power cable running from the battery to my alternator plus the main battery port I thought that was a power cord to A system that is no longer in the car so I told them to take it off could that cause the problem?

 
Rep Power: 518

Not trying to sound sarcastic:
As soon as someone figures out exactly what the problem really is, you'll probably know if that was something important or not.