I have an 82 240d with a manual transmission. Until toady it started fine with no problem. I installed some LED lights inside the car using power and ground from the headlight switch. But The LED lights only worked when the headlights were off. I went to the fuel station and when i came out my car wouldn't start. If I cycle the key back and forth sometimes the buzzer for no seat belt will go off in the first key position but when I turn it further than that it goes off. But that's all it does. No dash lights no crank I don't even hear the starter solenoid.