Hello again! So last week I changed the main battery since indicator light (white) came on and battery was showing bad. Jump ahead to yesterday, the indicator light came on again (still white). I plan to have the alternator tested at my neighborhood autozone, but I’m reading things that it could also be the aux battery... anyone experience this? If alternator shows good, is it definitely the aux battery? If so, I’m having the front air strut (bags) replaced this Friday, and I’ll buy/bring the aux battery for him to change along with that.