A-pillar gauge pod

[Tonavi]

I promised I've searched for hours and haven't found anything on this!

I installed an AutoMeter 3-3/8" tachometer and now want to add water temp and maybe oil temp gauges, too. I'd be doing an a-pillar pod.

Before I buy anything, I want to know how the water and oil temperature gauges are installed. The tach was easy; it plugged right into the ECU. I'd think that the water temp would be the same way since it's monitored by the computer. For the oil temp, there must be a sensor that I can tap into for a reading.

Has anyone installed a water oil temperature gauge (NOT the Scan Gauge) in their Yaris, and how did you do it?

I'd love to see pictures if possible.

Thanks YW!