Haha. I too have an 04 CompG with cigarette lighters that don't work. I've looked at the wiring diagram and I've pulled the whole center console and checked for power right at the plug into each socket. Something happens to them and they stop working. Only fix is replace the accessory/cigarette lighters themselves with new or go to a junkyard. I haven't been able to figure out why it happened.
Just check all the fuses underhood and passenger side to be sure none are blown but in my case they just stopped working one day and I haven't bothered to replace them yet mainly because I don't use them (don't smoke and my double din charges my phone)
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