I managed to get an AUX-IN going on my JDM 2006 Subaru Legacy’s OEM stereo…using the <AUX> button too. Hopefully useful to someone because there is a lot of discussion in forums about how to get and AUX_IN. Some are really convoluted but this solution is super-easy, cheap and logical. You press <AUX>, you get AUX.
- Took out the stereo,
- Installed the wire ,which daisy chains between the socket in the back of OEM stereo and whatever-the-AUX-1 is (still TBC!)
- Now I have my phone music – Google Music, Spotify, whatever – when I press the <AUX> button. Job done.
Was a bit worried it didn’t work when first installed as hitting the AUX button still did not seem to do anything, then I pressed it again and ‘AUX-2’ appeared. I do not think this happened before. My music started playing.