I have been using normal Raspberry Pi 4 for testing and configuration. Now I'm getting seriously wanted to install in my car after trying out all the controller, can bus, lin bus, gps, audio setup and timer shut down. Normally Raspberry Pi CPU is hard to cool when installing a sound card above. I wanted to know if anyone tried using Raspberry Pi CM4 and IO board. The reason I want this CM4 because it takes in 12v, has enough space to install a heat sink above the processor, potentially upgradeable and can leverage the PCIE for USB3 expansion card. let me know.