I want to in stall a CDL3 into my car. I do not have OBDII or an ECU that transmit any type of CAN or RS232 data. I am going to purchase the 12 I/O Option and use those for my logged and displayed channels. My question is: Which input will I use for the Tachometer input to the dash? will it be one of the DIG Speed inputs?
EB Turbo