How to Remove the Radio From a Mazda 6? Mazda six is one of the most popular cars available in the market all over the world. Mazda six comes with a default factory audio system. This system is of very high quality and performance. There is no need to change the audio system in this car. But still people do change it to upgrade their audio system to have powerful stereo and speakers. In particular youngsters are mad about powerful audio system and speakers. So, in order to upgrade your default audio system in Mazda six car you have to first remove the default stereo present in it. If you go to a mechanic or an engineer they may demand you big amount of money. You can save money and your time by doing this work on your own.