Sound Garage - Mazda 3 - Speaker upgrade, Alpine S-S65C 6.5" Component speakers, powered off an Alpine S-A55V 5ch Amplifier has given this client a huge improvement over the original system. #mazda3
ICE upgrades for a Mazda 3 - Team-BHP
2011 Mazda 3 Car Speaker Replacement - iFixit Repair Guide
Replace 2010 mazda 3 hatch front door speaker with pioneer tsa6880f : r/ mazda3