jetta wont turn over on 1992 Volkswagen Jetta

i got a 92 jetta for my daughter guy said it was the a replacment and when you try to start it the dash lights come on but when you turn it to start everything goes turn over ,lights, nothing. any ideas?

Asked by for the 1992 Volkswagen Jetta
Please explain. what replacement did you get? have you tried jump starting the car? how about measuring battery volts?