I have looked all over and haven't found what the amperage rating is for the 110V outlet in the dash of my new Silverado. I tried plugging in a heat gun that has a known amp draw of 8 amps , it worked for a second then nothing, I waited a little while and tried it again, worked for half a second. that tells me there is a thermal breaker in line with it and resets itself after it cools off. the sales man said he thinks its on a 15 amp circuit ( I crossed my eyes ) looking at the plug, so light duty. can anyone point me to some specks on that circuit? somewhere I did see that it is in line with a reserve power source but wasn't clear on how that worked.