does your car have mykey? thats with my moms focus.. but you can change the mykey features

This is a feature to lower the wattage being used by the car while the alt is under a lower load.
It's also so the music is in line with the outside noise.

Bottom line?
It's completely useless and the stupidest invention I have ever seen imputed into a vehicle in my entire life.

Its called highway sound or highway mode. either that or your alternator may be fucked up, and going to Autozone would be a mistake.

lol

I should vouch this, but not much can go wrong with a alt check huhu.

alt battery perfect so ill have to check the huhu and other things u guys mentioned