Can’t make connection and power works fine with existing doorbell.
Welcome to the Wyze community @bill-w!
Have you followed the instructions in the Wyze app for the 3-wire chime box?
Yes and what I am confused about is do all the wires go back to transform including the fuse bypass? I have tried every combination and nothing seems to work. Despite the existing doorbell working when hooked back up. Wondering if I have a bad fuse bypass wire.
Do you have a multimeter you can test it with?
You need to read then re-read the instructions. Then follow carefully step by step. Don’t over think it. Just follow what they say/show.