I bought a 2000 Lincoln Ls yesterday knowing it wouldn't start. Had it towed to the house and have been tinkering... took battery to autozone and tested fine and charged to 100 percent. When I turn key to start all it does it Click one time and all the lights go out temporarily while the key is turned to start. The PATS light is not flashing any codes and acts normal. The cars beeping that occurs while door is open is continuous and getting REALLY annoying.... I hope I can get some advice on here besides "take it to a dealer"... which I intend on doing once I can afford to do so. Right now, I wish to try to fix it on my own, with the help and advice of someone who knows what they are doing on here.... Thanks Y'all.