not sure i understand what is your intention, but this is what you can connect to the OBD connector (standard in all vehicles from 06 and up)
pin 16 - 12 volts power
pin 5 - ground
pin 6 - can high (j-2284)
pin 14 - can low (j-2284)
this is what most scanner use, and most of the information can be extracted from these wires.
in some cases you will need to connect the k-line (pin 7) but i'm not sure you will need it in your case.
does the equipment you are about to install has installation instructions?
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