Hi all, new to this forum so please be gentle
Battery draining overnight
Traced to fuse 13 marked audio 1
Taking 1.3 amps , longest trial 4 hours !
Removed fuse and drain down to a reasonable level
Mazda 3 2017

Hope someone can help
Thanks

 

Factory stereo or aftermarket stereo?

 

Factory stereo , not sure if fuse 13 covers anything else apart from the audio system.

 

It will be under warranty. Take it to Mazda.