With the main beams ON, it is 12.7v...
With the main beams AND Fogs ON it is 12.65v...

I will disconnect the fogs completely and try it although I don't think the 'fogs' are the issue. I am using the OEM Bosch fog lights that were used with the AMG kit. I simply removed the connectors at the fog light and wired them into it...so my fog lights in the main assembly have been replaced basically by the lower ones.

Since I am new to this type of stuff, could you give a more layman description on how to check for 'live'. Am I just checking for voltage at the fog terminals or what?

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
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2003 Gray Mercedes ML350 - 122k