I have been recently looking into changing out my old stereo system in my car and replacing it with one that supports Bluetooth connection. I have been watching videos online on some of the steps and items that I need in order to make the new conversion. Although when I was taking the stereo out to see what I have to do, there were two extra cables that went into the motherboard system that I haven't seen in other videos. I was wondering if anyone knew what these wires were for and how I should proceed? Here are some videos of me taking out the old system and showing the extra wires.