Aftermarket Gauge install help
I'm trying to find out where do I get the cables through the firewall safely? or where to drill through I can see a few places to drill but I'm trying to find out what you've all done and how it worked out in the end?
I have long tube headers so I'm not trying to fry my wire. I have Oil pressure (above the filter), water temp (rear of passenger side head) and a Wideband sensor (plan on going in the driver side).
I found a grommet in the floorboard close to the drivers seat, which I might run 2 of the wires (wideband and oil pressure) through there because the wideband sensor plugs in right underneath that grommet. and I might just make a small hole in the firewall for the 1 wire that leads to the water temp sensor. if you have any other info please let me know.

