Hey everyone, this is my first post here and I'm looking forward to interacting with all of you fellow Mazda3 owners. Anyways, I bought my 2010 GT hatch last August. I love it so far, except for the stock stereo. It is decent but nothing special. I was having some issues with the Bluetooth connectivity so I decided to replace the headunit as well as replaced the stock door speakers. However replacing these did not fix an issue that must be coming from the stock amp. When a song begins on the quieter side then becomes louder, there is a distinct moment when the amp seems to lower the volume to compensate for the increased signal it's receiving. Then when the loud part ends, it brings the volume back up. It's become quite annoying to me and I'm curious if anyone else has experienced this. If nobody has any ideas about why this might be happening, I'd love to hear suggestions about upgrading with an amp/sub package of some sort. Thanks in advance!!