i recently bought a 1983 244 GL, actually from a member of the brickboard, and have had only minor problems which i have fixed up until now. since i've had the car, 2 or 3 times all the electronics in my car have gone out(stereo, blinkers, tachometer, dash lights, etc...) but if i turned my car off and back on they would be back to normal. well 3 days ago the same thing happened again but when i went to turn my car back on none of the warning lights lit up before i started it nor after. since then it has been almost a 50/50 chance of getting my car to work properly when it starts but before too long the electrical system will go out. sometimes the altenator light will come on, sometimes it won't. possible causes?