Pro doorbell installation

In my original wall chime I have a positive and negative wire which comes straight from the transformer and two white wires that go straight to the original push button. What two of the four wires do I connect to the doorbell bypass kit.

Hey @SDC. The wiring for the bypass mode in the internal chime kit should look likethis in our Help Center Article here. If you need additional help with wiring, we recommend contacting a local electrician.