12v Power from Auto Dimmer

[Blackrubberducky]

Hello all,

I recently installed a aftermarket boost gauge on the center vent of Stinger's dash. The aftermarket gauge has an option to changes it ambient color when 12v power is supplied to an addition wire on the wiring harness.
Currently the gauge is set to only one color due to it night having power to the other wire that controls this feature.

My questions is: Where can I pull power (12v) under the dash, that has 12v when the headlights are on?

Haven't found anything short of running a wire from headlight, through the firewall, then to the gauge itself.

 

[nhcowboy28]

Why can’t you run wire to the fuses near driver’s leg?

 

[Blackrubberducky]

Why can’t you run wire to the fuses near driver’s leg?

That’s what I’m looking for. A wire that I can tap into. Sorry I worded it weird

 

[nhcowboy28]

That’s what I’m looking for. A wire that I can tap into. Sorry I worded it weird

There both switched and constant fuses you can tap. I think I used the sunroof one.

 

[Blackrubberducky]

There both switched and constant fuses you can tap. I think I used the sunroof one.
View attachment 58162

I want a power wire that only has power when the headlights are on.

 

[Stock_stinger]

He's wiring a dimmer sense wire. It would need to only be live when the headlights are on. Let me look in the schematics

 

[nhcowboy28]

I’m sure one of the fuses there cover it. Look on the back of the fuse cover or in the manual.

 

[Blackrubberducky]

I’m sure one of the fuses there cover it. Look on the back of the fuse cover or in the manual.

I did. Nothing. First place I checked haha

 

[Stock_stinger]

i dont see one in car. its all ran from the multifunction to the IBU, pull down circuit. then B-can network

 

[nhcowboy28]

I did. Nothing. First place I checked haha

Wonder if the “cluster” 10A is live with key or at night... might at least be worth throwing a multi-meter to it.

 

[Stock_stinger]

Wonder if the “cluster” 10A is live with key or at night... might at least be worth throwing a multi-meter to it.

One is hot all time sd110-10, the other is switched sd110-9 in on/start

 

[nhcowboy28]

One is hot all time sd110-10, the other is switched sd110-9 in on/start

I only see one “cluster” fuse on mine (top center) But it was a long shot.

 

[nhcowboy28]

I want a power wire that only has power when the headlights are on.

Curious why you’d only want it when headlights are on.

 

[Stock_stinger]

He wants it to dim at night

 

[nhcowboy28]

He wants it to dim at night

Thanks but I’d like to hear that from the OP.

I don’t get that from his posts.

But since I’m the village idiot. I not that bright.

 

[Stock_stinger]

I'm pretty sure I know who it is. I sold him the boost gauge adapter that I designed and manufactured

 

[Blackrubberducky]

Thanks but I’d like to hear that from the OP.

I don’t get that from his posts.

But since I’m the village idiot. I not that bright.

No worries. I worded it odd. The gauge had a day time mode and a night time mode. Add power to one it’s day mode, add power to both is night mode. I want the ability for it to switch to night mode whenever the headlights turn on automatically.

 

[Blackrubberducky]

I'm pretty sure I know who it is. I sold him the boost gauge adapter that I designed and manufactured

Yup. Stephen here.

 

[EClapp3]

Could you run a N/O relay that is switched by the multifunction switch or is that all in the can-bus system? I dont have schematics for this car.

 

[Stock_stinger]

I

Could you run a N/O relay that is switched by the multifunction switch or is that all in the can-bus system? I dont have schematics for this car.

If you run a 5v relay and tie to the multifunction output. Leave the input high on the relay and multifunction triggers low on output