When I go to turn the key to start the vehicle it clicks once and doesnt turn over. The click sound sounds like its coming from the firewall somewhere but cant figure out where exactly. A couple years ago i replaced the ignition switch, but recently i bought a new starter and still just clicks once and does nothing. I also replaced the battery. So right now the only way I can start the vehicle is but putting the key in the on position and take a flat head screwdriver and jump the terminals on my starter and it starts no problem. It has been like this for months and I have not clue as to what it could be. If anyone has had this problem or knows what it could be it would really help me out a lot thanks.