My kid (and I) just purchased a Bachman Thunder Valley n scale set. It has a power supply in it 46605a.

We also purchased a remote turnout 44862. I am not smart enough to hook the turnout into the system apparently. There is a red wire that looks like in the diagram should be hooked to some plastic poles on the power supply, which I cannot figure out to do. Is there some other piece of something I need or should have been sold with the turnout?

I am clueless.