starting from the beginning , if you had to jumpstart the car at the starter to get it to crank , the ignition switch is obviously not working.what happens when you turn the key to accesories ? do you get lights coming on ? when you turn the key to start and get nothing 1. check battery and cables. good battery and ground....2.check fuses , fusible links (especially to starter) ground wires and small wire to starter usually pink. this small wire should get hot when key is in crank position (all the way foward) if it doesent check fuses and fusible links. get it cranking with the key , not by jumping to starter direct. good battery fuses relays and fusible links but still no crank would tell me 3 things. bad starter ,which you know isn't it already because you jumped it direct and it cranked...2 a factory security ignition cut off needs to be deactivated....3 BAD IGNITION SWITCH. the insf you're talking about may be a factory security ignition cut off. you need to get a manual or contact dealer and find out how to shut it off. finally after all this is done if you can't crank this car with the key.... replace ignition switch. once you get it cranking correctly , getting it running is a whole different story ! i'll be glad to reply when you get to that point ! good luck.
