[legion]

First, check your fuses. Are you getting power to anything?

Do you know how to use a multimeter?

Start by checking the voltage at the battery with the car turned off. It should be around 11.5 - 12.5 volts. Turn the car to the accessory position, note the voltage. (It should not drop significantly.) Do not try to start the car with the multimeter hooked up. Disconnect it, and try to start the car. Reconnect and check the voltage. If the car is running the voltage should be around 13 volts.

Check your main ground. There is one from the negative side of the battery to the battery tray wall. There is also one that will go the the bell housing over the clutch/torque converter. Check the cables on the back of the alternator.