Just remember that you are only allowed two devices, one above the ribbons and one on the pocket flap.
Your .MIL ribbons supersede the Aux ones.
That hasn't been true for more than 20 years. As stated earlier, the AuxMan or the referenced site shows the correct order of precedence. In fact, in most cases, an Aux equivalent to a military decoration takes precedence to the military decoration since the Aux is the parent service. And just in case someone is curious, state militia awards and Civil Air Patrol awards cannot be worn on the Aux uniform.