Rustbucket Pioneer CT-W504R Auto NR cassette deck restoration

Restoring a rusty but trusty 1995 Pioneer cassette deck with a unique "Auto NR" feature that attempts to automatically detect which Dolby NR system (if any) a tape was recorded with. **VIDEO LINKS BELOW (CLICK SHOW MORE):** Its successor, Pioneer's cassette decks with Digital NR: https://www.youtube.com/watch?v=v14AEKgX29U Interface's video on cleaning, aligning, and demagnetizing cassette decks: https://www.youtube.com/watch?v=kYK9Y7HMOR4 The test recording played with the correct Dolby NR systems: https://www.youtube.com/watch?v=09Cm_hilnWE