2002 mazda Protege 5 will not keep running
My Mazda Protege 5 has what i believe anelectrical problem. I have to boost it to get it running. I let it run for about 45 minutes then when i go in and do anything electrical like turn on radio (after market which i have removed thinking that was the problem). I cant even have the running light on or even the heater blower motor on. I have had it running and disconnected the battery and it has kept on running. Could i still be looking a weak or bad alternator?