Where to wire my aftermarket gauge for lighting?

[SupraStoked]

I just finished installing a analog oil pressure gauge in the supra, but i want my gauge light to come on whenn i flick all the other dash lights/headlights on.

where EXACTLY do i have to splice into to get that to happen?

and the gauge just has a regular light bulb with two wires, one that says its for ground and the other for power..wouldnt i need a pos/neg flow of charge?

Oh and yea, i put the gauge inside the gauge cluster.

 

[IJ.]

I'd wire it into the existing dash lights so it dims.

 

[SupraStoked]

I'd wire it into the existing dash lights so it dims.

yea i want to but how? the back of the gauges has that green motherboard thing and I wouldn't know how to try to get into that. I need like a specific point/pinon a connector/ or wire.

 

[IJ.]

Follow the Trace back from the Bulb holder, from memory it'll be a White wire with Green trace for power then hook the ground to the Brown (again from memory)

 

[SupraStoked]

Follow the Trace back from the Bulb holder, from memory it'll be a White wire with Green trace for power then hook the ground to the Brown (again from memory)

awesome thank you. just to clarify, when you said to hook the ground to the brown, are you talking about the brown contact part of the flexible motherboard where the old bulb would fit into?

 

[IJ.]

One side of the bulb holder will go back to a White/Green, the other to a Brown.
(Might be Green/White) make sure to check it.

 

[SupraStoked]

okay cool. sounds good thanks again!

 

[IJ.]

Welcome!

 

[IJ.]

Just checked it's White/Green and Green..

 

[SupraStoked]

Ij.......you're the best!

Sent from my LS670 using Tapatalk 2

 

[IJ.]

Just verify you have the right ones, the easiest place to pick them up might be the Cig Lighter illumination, pretty sure it's on the dimmer.

 

[SupraStoked]

okay but my cig lighter doesn't illuminate anymore..should I check a fuse or something?

Sent from my LS670 using Tapatalk 2

 

[IJ.]

Probably a dead bulb, it's the same circuit as the dash lights so if they work it's not the fuse.

 

[ifyouaint1sturlast]

Could tap into the rheostat since it outputs to the dash right? It's near the column too ..

 

[SupraStoked]

what is a rheostat?

Sent from my LS670 using Tapatalk 2

 

[ifyouaint1sturlast]

The dimmer

 

[IBoughtASupra]

I used the cruise control switch on the left panel. It has the power, ground and illumination. I could tap into it as I don't have cruise control on my car.

 

[ifyouaint1sturlast]

CC switch on LEFT?