I have a 2001 mustang GT and It won't start at all. battery drained somehow, the battery is brand new and I turned it on the day before and it lagged to crank over but it did turn on , I tried to turn it on today it was dead the radio didn't even turn on and the door won't even lock with the switches ,battery is brand new
Check your battery cables, connections for corrosion and diagnose if you have a parasitic draw.
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