tried to start and one click then nothing

Check your terminals on your battery's it sounds like a bad connection

if all the lights go off, I would suspect a ground problem. do like Bk said, but if the connections look good on the battery, check out the ground on the engine block.

Sit in the vehicle then sound the horn. If it sounds weak suspect a bad connection or battery. If OK turn on headlights and repeat the sounding of the horn. With a good battery and connections these items should work perfectly. If not begin checking.