how to troubleshoot why starter wont turn over on 2000 Volkswagen Cabrio

car started a while ago now i press clutch and turn key over and get nothing. had my brother wiggle wires around and kicked over once now nothing. any idea where to start?

1 answer 1 comment
Test for signal voltage(battery voltage) at solenoid wire on starter , when someone turns the key to crank/start position. Connector may not be getting a good tight contact when it's plugged in.
what do i need to test it with? a test light?