There is only 1 Pico board sold right now, and the specs dont match. Also the G4 is older than when the pico came out.
uATX is too big for double din.
That leaves mini/nano itx. I doubt it is an off-the-shelf mobo though, but it is probably nano form factor.
Fusion Brain Version 6 Released!
1.9in x 2.9in -- 47mm x 73mm
30 Digital Outputs -- Directly drive a relay
15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
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