I recently installed a new radio and my SRS light came on. The code that came back was B1635 curtain airbag sensor malfunction LH. Is it the curtain airbag to the front or does it have to do with the new radio? I tried clearing the codes thinking it was because of the radio installation and turning it on with the airbag connector disconnected but they wont clear. I didn't mess with any of the curtain connectors so why is this code popping up?