Hi Bruce, Is it possible to supply the board with 5V internally, so we can use any other power pack. The USB C is not possible to charge the pack so therefore it does not work for us. To power the board from the Truck need a DC/DC as the power is +24 usually, and I guess the input of the Odyssey can only take 19V max. I don´t understand really how to connect this 12V signal, can you supply a more detailed description please?