Have had a SR for about 2 weeks or so and have noticed the driver side window speaker crackles a bit when the volume is halfway up and higher.. I have my bass setting pretty high and the treble a little over halfway but I don't see how that might affect it

Also the subs buzz too. Is this something the dealership could fix?

 

You may have a blown speaker(s). Bring the vehicle back, I don't see any reason why this shouldn't be covered under warranty.