Android auto style wired connection to generic android head unit (BT and USB tether)

[Helmi Hadi]

Hi,

First, I forgot about this app after purchasing it like 5 years ago. Stopped using it for more than 3 years now since the phone has the function I needed. I just never needed it again. Now I am totally clueless.

I have bought a generic android head unit with android 9.0 from aliexpress for my car. However, it does not have on board android auto style wired connection.

When I plug in the phone to the usb of the car, a file manager comes up. Is it possible to setup the phone to function when connecting android auto based unit. Where the:
1. USB wired connection gets enabled so that the unit can connect to the Internet,
2. Bluetooth turns on so that I can make calls from the car. 
3. Contacts get updated to the head unit.
4. Music can be played to the head unit 
5. Navigation which was set on the phone gets displayed or remembered by the android player.

All these functions are standard functions of android auto head unit.

Possible?

[andy o]

You might wanna try the app Headunit Reloaded, which would give you Android Auto on your Android-based head unit. Otherwise:

1. AFAIK USB Tethering on Android phones only works to Windows, not to other Android devices. You'll need to do WiFi tethering and have the Android head unit connect to your phone that way.

2. You can just leave BT on on the phone and on the head unit. Is there a reason you have turned it off. With it on, you can use the "BT connected" or "BT Near" conditions to launch WiFi tethering for #1 as well. If you're worried about battery drain (which you shouldn't really), then you can have a power state condition so it triggers when you're charging only and turns on BT.

3, 4 and 5. If you have your contacts on your Google account, since you'll have internet from WiFi you just need to log into it on the head unit. Same for your streaming and Google Maps.

[Helmi Hadi]

Thanks for the reply.

1. I see. I thought it could be done on android. Since the android auto head units are android based right, and not Windows. Saw the app, have not tested it yet. I like the AGAMA interface better.

2. I think tasker can automate all of these. Though I am not sure how it can differentiate between power usb and data usb? Since it seems that it does not matter which port I will be using since the WiFi and BT will be enabled. Is it recommended to leave BT always on on my phone? There is a setting in the car to leave the WiFi and BT connection always on. Battery drain is not significant for WiFi and BT tethering? I know the phone becomes hot. I am using a Samsung note 9. If I make a task to on WiFi Tether and BT all the time when I charge it, so it will occur anywhere I charge, if I am not mistaken.

So for my case, it is better to on BT and WiFi rather than headunit Reloaded then?!