no wipers or blower controls?

Steering coupler? Can you please expand on that? So, there is a smart junction box that powers these items I would start by checking for power at the fuses.

Here is a guide that will help:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

The fuses you should check are in the images below. If no power is present when the key is on, then the SJB needs to be replaced which I have left instruction for. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

I got it figured out. the ignition starter switch went bad for some reason when I changed coupler.

Glad you could get it fixed, thanks for letting us know. Please use 2CarPros anytime we are here to help.