Yes you can connect as you stated with tx/rx.
please see dmd support here:
https://www.drivemodedashboard.com/support/dmd-t665-support/
if you purchase a new harness for the t-665 with 12VDC to 5VDC conversion it will come with connectors for power and rx/tx for both phone and remote. Plug and play.
For IOS and IPAD browsers, Install PWA using add to home screen in ios safari browser or add to dock option in macos safari browser
For IOS and IPAD browsers, Install PWA using add to home screen in ios safari browser or add to dock option in macos safari browser
DMD ADV HUB is installed successfully.
Push notification permission blocked in browser settings. Reset the notification settings for website/PWA
