Making a car harness from universal cable
1 – Understand CAN BUS ENUMERATION in <https://github.com/commaai/hardware/blob/master/harness/v1/open_pinout.sch.pdf>2 – Before you MITM it, the numbers don’t actually exist—they’re just an abstraction to help the developer understand the direction the signal is coming from. By convention, 2 is the “master,” which…