trap63 It was very complex dismantle the genuine Duduauto BT unit to relocate inc enter console of my car (BRZ'13 with no steering wheel button), but the results is very good and works fine. Wiring relocate with 12v/3.3v converter to avoid CR2032 battery. The size and shape of Dudu SWC is very curious, Dremel helps fine. Why do you do not produce only a square unit to put on a regular surface?