Mazda 3 HUD

Pin	Signal
1	GND
2	CAN
3	CAN
4	+12V
5	+12V
6	+12V
7
8
9
10
11
12

IC	Purpose	Info
VGV641	Graphics Controller	https://device.yamaha.com/en/lsi/products/graphic_controller/images/PBGV641A-001-02-e.pdf
tja1042	CAN Bus transceiver
mx25l12835	SPI NOR FLASH 128MBIT
MB91F577BHS	32-bit Microcontroller
TPS65320B	TPS65320-Q140-V Step-DownConverterWith Eco-mode™ and LDO Regulator	https://www.ti.com/lit/ds/symlink/tps65320-q1.pdf
A1764	Dual N Channel MOSFET

Commands

start HUD cansend can0 202#0800000000001983 (HUD seems to open as soon as the engine RPMs cross 500)