Carlink issues

I have the following issues with carlink (duduos 3.6 on 8581 platform):

Carlink won't use the system day/night mode. It always uses the headlights switch.
I can't use the android auto voice assistant via steering wheel buttons. It only opens the system assistant
If the bluetooth connection changes to a different phone, android auto stays connected to the previous phone, until you force close the carlink app.

Does CarPlay not support dark/light mode switching? Please open Settings > Day/Night Mode > Advanced > Enable Force Sync with Android Day/Night Mode and try again.
The voice assistant for Android Auto should be your phone's built-in voice assistant. You need to pair it via SWC and use the Bluetooth voice button to activate it.
This is completely normal and poses no issues. When connecting a new phone, you must turn off CarLink and reconnect the new device via Bluetooth protocol.