I have a shader already using a texture, and I am trying to add a 2nd layered shader using alpha to use a decal.

I got as far as setting up the 2nd layered shader with a decal, and that works, but the problem I am having is trying to figure out how to set it up so I can position and scale the 2nd shader image.

I have the UVcoords1 going to both the alpha, and the shader texture, but from there, I can't figure out what to do to put the correct node that works.

I tried UV transform and UV postion linked off the uvcoord1 but it didn't work.
hoping someone knows how to do this correctly