I got this Panlelo S6 car radio. Built-in microphone is not so good. I can hear well others people during bluetooth call, but they can't hear me very good, especially at high speeds. I would have connected external mic, to fix my problem but device does not support it, no input for that. Does anybody have any idea is it possible to connect it somehow external mic? Or some other way to fix this? Option to open radio and connect directly mic, and do some wiring, like this, I'm aware about that solution. Use Bluetooth headset is not option. Just connect external mic somehow, maybe via usb and if then would be possible to tell android device to use that external mic, that was my thinking. Any ideas are welcome. Thank you.