Hellow guys, Welcome to my website, and you are watching Why does the speaker make a POP sound, when the Head Unit turns on or when I change the source. and this vIdeo is uploaded by Dean and Fernando's Car Stereo Clips at 2020-10-22T21:00:14-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.