Hey,
my 04 zhp was not driven for around a month (no keys) and when i finally got new keys it started right up. did it 2 more times that day and it worked fine. then when i was driving, if i went below 1500rpms the radio or my lights would shut of and the the dsc lights kept coming on and wouldnt shut off. so i drove it home parked it and took the battery to get charged at auto zone. they said it was good. so i put it back in and it worked. but after 2 days the car wont even start. im guessing its the alternator? and if it is can anyone tell me what the best replacement alternator is for my car?