Android phone + USB-C OTG cable + PEAK PCAN-USB adapter + the OBD cable. Listen-only: nothing is sent to the truck. Nothing to install — this page does it in Chrome.
This browser cannot talk to USB devices.
Use Chrome on Android (or Chrome / Edge on a laptop). iPhone cannot read the adapter; use a laptop: windrose.ai/start.
Plug the PCAN-USB adapter into the truck's OBD port. Ignition ON.
Connect the adapter to the phone with a USB-C OTG cable.
Press Connect, pick "PCAN-USB" in the list, then press Record.