My lights, turn signals, radio, heater… Everything works, but my car will not start. When I turn my key to the start position, my car does nothing.

More than likely, the neutral safety switch wires are not hooked up. This is a fairly common over sight.

Solution: Most dash wiring harnesses have the neutral safety switch wires installed in them already and simply need to either be hooked through a neutral safety switch (in the case of an automatic transmission) or just need to be joined together (in the case of a manual transmission) to complete the starter circuit back to the ignition switch. If they are not hooked together, power will not be continued from the ignition switch down to the starter.