1993 Geo Prizm 4 cyl Front Wheel Drive Automatic 93,000 miles
installed a 200 watt stereo in my geo and in the process of soldering speaker wires to the radio from the dash the car began to crank over itself. No keys in ignition but the battery was connected. Now if I connect the battery terminal the car starts turning over instantly without the key in the ignition. It wont stop turning over until you disconnect the battery terminal.I think its the starter relay but I realy dont know. How can I find out what my problem can be.