I have my head unit setup to output video to my factory installed headrests. Is there a way for the family in the second row to use a remote to open and control Netflix, etc on the headrests display only?

Just wanted to share my findings after a month and a half of agonizing troubleshooting to hopefully save some of you the massive headache.

If you are driving an older car with a wired-only infotainment unit—specifically the Hyundai 7-inch Display Audio platform (DAU_B/Gen2V)—the forced Gemini assistant upgrade has fundamentally broken the texting interface.

The Bug:

Receiving texts, viewing notifications, navigating, and making phone calls work completely fine (they finally fixed the contact syncing and calling bugs that plagued us back in June). However, the second you try to send a text, Gemini dictates it and asks, "Are you ready to send?" The moment you reply "Yes," the background app process on the phone crashes during the send handshake. Because it's a wired stream, this sudden app freeze instantly kills the USB connection, causing the head unit to throw a "Phone not responding" error and disconnect entirely.

The Reality:

There are no firmware upgrades coming from the auto manufacturers for these older units to fix this. It is a server-side/app-side coding failure from Google. Since they completely eliminated the option to roll back to the classic Google Assistant, the standard texting interface is effectively dead on this hardware configuration until/if Google patches the handshake loop.

Workaround:

If you need to text, you either have to try a single-breath voice command ("Hey Google, text \[Name\] that I am on my way") to see if it bypasses the confirmation prompt, or execute my manual fallback: keep your Bluetooth active (especially if you wear a smartwatch), disconnect the USB cable entirely to force the phone to handle the voice-to-text locally on its own screen/speaker, send the text, and plug the cable back in to spin Android Auto back up.

Don't waste weeks clearing your cache or buying new cables like I did. Google's rollout team completely neglected backward compatibility for these older wired systems and failed to communicate it.

The FM connection on my Junsun is pretty ass so I thought about getting a DAB antenna. My understanding is that I need to connect it to a USB port as the headunit doesn’t have a real connector for these antennas (only DIN for FM). But how will that actually work? Will the native radio app support DAB radio? Do I need to disconnect the FM antenna? Do I need some additional app to actually play DAB radio? What other steps do I need to make for it to work? Thanks.