Originally Posted by
James1549
From your symptoms, sounds like your charging system isn't keeping the battery charged to where it should be. Get the car started again and while the engine is running, you should be showing 14 volts on average. About 12.6 volts with the engine shut off. If it is anything less than 13.4 volts with the engine running, you have a charging problem, most likely the alternator.
James
I agree if it is not charging you are running on battery power only. The electrical system goes nuts if it does not have enough voltage and amperage.