Audio Quest A Capt- Lights Adventure - 2009 Issue 7 2-3 was released on:
USA: 2 February 2010
Audio Quest A Capt- Lights Adventure - 2009 Issue 10 2-6 was released on: USA: 22 February 2010
Audio Quest A Capt- Lights Adventure - 2009 Issue 2 1-2 was released on: USA: 12 October 2009
Audio Quest A Capt- Lights Adventure - 2009 Issue 3 1-3 was released on: USA: 19 October 2009
Audio Quest A Capt- Lights Adventure - 2009 Issue 4 1-4 was released on: USA: 23 October 2009
Audio Quest A Capt- Lights Adventure - 2009 Issue 5 2-1 was released on: USA: 25 January 2010
Audio Quest A Capt- Lights Adventure - 2009 Issue 6 2-2 was released on: USA: 25 January 2010
Audio Quest A Capt- Lights Adventure - 2009 Issue 8 2-4 was released on: USA: 8 February 2010
Audio Quest A Capt- Lights Adventure - 2009 Issue 9 2-5 was released on: USA: 16 February 2010
There may be an issue with the relay switch going to the radio lights. There may also be an issue with the fuse.
If you do not have working tail lights on your GMC vehicle it may be an issue with the wiring or your lights may be burned out.
Try adjusting the dimmer on the control for the dash light. If ti were a fuse, you would have no lights and that would never be a bulb issue. How's your alternator??
Your Android Google voice says audio problem sometimes because of a Navigation Voice Issue.