Going to have to make a hole. I have a WB A/F gauge in my Cuda and had to make a hole in the trans tunnel up at the front. The ends are fairly large, so your hole and subsequent cover needs to cover it. There are a number of aftermarket type covers/grommets so you are not left with a gapping hole. I usually make a 2 piece type cover so that when in place, only the cable is coming out.