OK. I checked the ground to the car body. Connection is tight and clean with absolutely no corrosion. Let me expand on the incident with the speedo. When the speedo went to zero, the dash had most lights on, and trans wouldn't shift out of high gear. When I stopped at a gas station, the spoiler would not go down on manual, and the car would not restart after I killed it. Acted exactly as it is now. Power to dash, radio, lights, etc., but spoiler would not respond and the starter would not even try to crank. After a 20-30 minute wait, the car started and everything acted normal including the spoiler. That was 2 weeks ago.

Since then, it will not attempt to start and spoiler went up and will not go back down with the switch. I bought a new battery and installed. The voltage is 12.59. When I turn the key to attempt to start the voltage does not go below 12.35. The only sounds are a few relays under the hood when you first turn the key to the "On" position, but nothing else when you turn to "Start".