Getting ready to finish wiring up my trans temp gauge and wondered if there was an easy way to route the sensor wire from inside the car to the transmission. A hole in the floor would be easiest, hopefully one already exists with a grommet. I know I can run it out the firewall and down along the floorboards but I'm hoping there's an easier way. Is there a hole under the center console where the shifter cables go? Car is an 89 GTA 700R4.

 

Take your console out and you will see the shifter cable openings just drill a hole there and put a rubber grommet in that would be easiest.

 

yeah, there is already a large hole that the shifter cable runs through with an attached grommet. you could probably squeeze it in between the cable and its existing grommet.