Post up a picture of the cable.
You Shouldn’t need to cut the cable it if it’s already pinned correctly .
Plus it may take advantage of the power from the OBDII So NO
HTH
GL 
PJ 
Post up a picture of the cable.
You Shouldn’t need to cut the cable it if it’s already pinned correctly .
Plus it may take advantage of the power from the OBDII So NO
HTH
GL PJ