i have a 99 xp limited and am having problems with it not starting. full battery charge - when key is applied it beeps twice as it should, but there's nothing when pressing the start button. sometimes if the key is removed and re-applied a number of times it may eventually start... but more often then not, it doesn't start. am taking it to an auto electrician on monday, but does anyone have a wiring diagram they could share please?? or any tips on what this might indicate is wrong?