I had a wheel hub go bad a couple days ago. I put the cart in tow and hauled back home. Decided it was time to replace front suspension, so replaced both hubs, king pins, steering box, spindles, shocks and such. Got everything back together, wanted test things, turned back to run position and turn the key, nothing, no click, nor reverse buzzer, nothing. Put the charger on just in case, and still nothing after a little charging time. What might my issue be to suddenly have this happen with no previous issues starting before?