A few days ago, while I was driving, I noticed battery light came on. I thought alternator was bad so I have the car towed home. I order a new alternator from Amazon. Today I installed the new alternator and thought things would be ok. But the battery light was still on. I checked the fuse box, sure enough there was a blown 10A fuse. I put a new fuse but that one was blown too. I am puzzled. Does anyone have any ideas or experiences to share? Thank you very much in advance.

 

This is likely a short. One of the common culprit is the wiring at the O2 sensors. Check those first.