A little advise. The other day my son's turn signals both front and back just suddenly quit. After he parked it he noticed the back up camera wasn't working on the receiver but the radio still was. All the other external lights work properly. Checked every fuse. All good. No error codes read. However the faulty external light icon on the dash did come on. Is it a possibility that when the backup camera was installed a few weeks ago some how it could have caused it like a bad grounding or whatever since both did it at the same time?