MY CAR WONT EVEN TURN OVER, WHEN IT RAN FINE YESTERDAY

I have a 1998 ford contour svt with v6 dohc. My question I tried hooking up a rpm tach to my car (standard) and hooked in up to the green and brown wire connected to the coil and got only 500rpm for every 1000 well I went out my car started fine and ran fine the next day I start it and walk around making sure all my outside lights work and I get back in and put it in gear and the car runs rough like only 5 cylinders were fireing and the speedometer didnt look like it was working and the car died now when I try to start it nothing happens. It doesnt even turn over, I tried fuel shot off valve it wasnt that then tried replacing ignition relay still nothing and then thought it was the clutch switch preventing it from starting and seen a red looing switch under the dash by the clutch that looked broke so I bypassed the clutch relay by connecting the starter to the relay and still nothing. It has an alarm but idk if thats causeing it maybe the tach blew a relay or something the lights and everything works fine it just wont turn over.