Bought a used ?85 Fiero, I drove it home, about 60 miles with no problems. I parked it and didn?t touch it all winter. Eight months later I tried to start it but it had no power. I took the battery out and had it tested and it wouldn?t hold a charge so I bought a new battery.
Put the new battery in, no radio, no headlights, no dome lights, engine won?t crank. The only power I see is the two light interior door lights and they are barely visible. Tested new battery and it has full power.
Any ideas to where I should start looking for the source of my lack of power?