Leaking Air Bags?

I pulled the hoses out of a T fitting, and one by one, I attached a fitting for putting air into the system. I had a spare, since I combined them into a single feed. Then I reattached the lines to the T. It could be introduced at the fitting that is presumably mounted in the bumper, but I wanted it inserted closer to the bags. I was able to verify the leak(s) weren't anywhere else along the way, so either the bags or the fittings at the bags.

Since this is intended for inserting directly into a tire, the bottle easily connects at a filler point. You just remove the valve core temporarily.