Bought used car need to have someone look at it
Recently my car was dead so I replaced the battery. It worked fine for 3 days. Then it was dead again. This time I replaced the alternator. It worked fine for 3 more days. Now it is dead again. What possible reasons could be that my car will not hold a charge besides the battery or alternator? The car is a 99 Buick Park Avenue V6 Supercharged. Thanks!