Oil Temperature Gauge - Routing (Need help)

[H3XME]

Hello,

I've had an HKS Temperature gauge on my shelf for a few years now and I finally decided to use it. I will put it in next time I do an oil change as it replaces the sump plug. 

However, in terms of routing the wire from the oil pan back into the cabin (to the gauge), I'm not sure which way to go. In my GT86 I ran it through the wiring harness hole in the firewall that was located just under/behind the Battery on the passenger side. Is this the same case on these? I haven't looked yet, so apologise in advance. Alternatively, since the plug side on the driver's side, it would be ideal to run it through the same side of the car, it would be a much shorter path but I don't know if there's a hole in the firewall on the driver's side. Any input is appreciated. Thanks

[Linas.P]

Should be possible - there are big holes in firewall on both sides with rubber gasket... that said the harness going trough them is very thick as well, so I am not sure how much space there is to pull additional wire. 

Alternative would be running it under the car and using existing holes for O2 sensors that comes just by the side of gearbox.