Peace, mercy, and blessings of God be upon you. I have a Bluetooth module that connects to the back of the stereo. It improves sound performance, making it very loud, clear, and excellent, better than a wire, and the quality is better than the cigarette lighter MP3 port. It fits the Mazda 6 2007, specifically connecting to the CD input in the stereo. It connects to Bluetooth quickly, and the sound is amazing. Reason for selling: Installed a screen. Selling price: 60 SAR