Battery light and brake light came on recently, then soon the truck wouldn't start so I replaced the battery and alternator but the lights didn't go away. I tried checking the grounds to see if that was the issue but still no fix, then tonight suddenly the turn signals were taking power from the radio, at first it was just interfering with the sound, but soon the radio wouldn't stay on.
Please give me any tips you guys have, thanks!

 

sounds like an alternator