I don't see a whole lot of difference between people asking "Well, what made God?" and people who use to believe that if you sail on the ocean far enough you would sail off over the edge of the world at a waterfall.
Thanfully some thoughtful poeple eventually grasped that the earth was round and that you don't sail off the "edge" of the earth at a waterfall far out at sea.
And somewhat the same some of us realize that all being and existence is curved around God. And the question "who made God?" or "where did God come from" is meaningless.
Some modern theologians have dealt with this issue by discribing God as the Ground of Being. By very definition God is that for which there is nothing greater.
Sorry. I don't think it means a antogonistic relationship with such a God because He is eternal and everexisting - self existing. There is no basic reason, I think, that negative red lights need to go off in our minds because we're finite and God is not.
Getting to know God is the answer this tension. And grasping that God wants and meant to have us share eternity with Him in a very strong love relationship as manifested in the life, death, and resurrection of Jesus Christ.