UPDATE:
Ryan Vickerman provides the access code for the diagnostic menu in the Alpine unit, allowing this annoying parking brake feature to be turned off. Here are the steps to access the hidden menu:
- Select FM;
- Press and hold Direct Tune for 5 seconds;
- Press the Menu button (looks like a mosaic);
- Press the Star button;
- Press the Voice button;
- Scroll down to Other;
- Toggle Parking to 'On'
Thanks Ryan!
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I've found it annoying that I was unable to access the 'Setup' menu or stream HDMI content on my Alpine Stereo (ILX-F309 'Halo') without having the parking brake engaged, so I got one of these 'Bypass Overrides' for $15. It required 3 simple connections (Remote lead, Parking Brake lead, and Ground), and took about 90 minutes to pull the head unit, identify leads, connect, and reassemble.
Installing this allows you to access the Setup menu and stream HDMI content to your Alpine head unit WITHOUT having to engage the parking brake.
Jul-5-2020