If you are in Norway, many folkebibliotek (public libraries) offer:
Ask the librarian for "På Vei med lydfiler". pa vei arbeidsbok audio free
Most public libraries in Norway (Deichman in Oslo, Bergen Off. Bibliotek, etc.) have a "digitalt bibliotek." Even if you live abroad, you can sometimes get remote access. If you are in Norway, many folkebibliotek (public
Many Norwegian language schools purchase a digital license for På Vei (via Cappelen Damm Undervisning or Bokbasen). If you are enrolled, ask your teacher for the login credentials. Once logged in, the audio for the workbook is embedded directly into the online exercises. You can stream or download it for offline use within the app. Ask the librarian for "På Vei med lydfiler"
The most reliable place to find the audio is directly from the publisher, Cappelen Damm. They usually host a section on their website called "Nedlastinger" (Downloads) or "Ressurser" (Resources).