hi, i have a tcu to test that, i have bt in car (also retrofitted), i tried once the tcu module (just plugged in...), i can see the tcu module in dis/inpa, i can read coding data with ncs, those days i will try to (delete all old paired phones) pair it with my phone, also i want to deactivate all telematics / assist features (vin related hw), i will keep you updated on progress

regards