Tapping 12V pos from dash
#1
Tapping 12V pos from dash
Installing my water temp gauge on the A-pillar... need a power source. Is the single black wire under the a-pillar the power to the dome light, and good to splice into?
I'd also consider using the sunroof power out from the fuse box (it's an R2), but I have no idea how to find the positive lead. Any suggestions?
Also, is it safe to ground the water temp gauge to the dash, or should I ground all the way to the engine block for better accuracy?
Dave
I'd also consider using the sunroof power out from the fuse box (it's an R2), but I have no idea how to find the positive lead. Any suggestions?
Also, is it safe to ground the water temp gauge to the dash, or should I ground all the way to the engine block for better accuracy?
Dave
#2
Money Pit
iTrader: (1)
Any good ground will work.
A good power source is in the fuse block near your left foot. Inside it are (2) 12v power taps (female spade type connector, you'll need the male type to connect with). (1) of those is switched with the ignition, the other is constant, so use a test light or multi meter to figure out which is which.
Regards,
Frank
A good power source is in the fuse block near your left foot. Inside it are (2) 12v power taps (female spade type connector, you'll need the male type to connect with). (1) of those is switched with the ignition, the other is constant, so use a test light or multi meter to figure out which is which.
Regards,
Frank
#6
Rotary Freak
The left fuse box is where my mechanic goes , but you may check the cig lighter hot wire in the dash board . You can get to it from under the dash if you lay on the floor . His turns off with the key off , 1994 , so check that yours does to
#7
Yeah, I got the dimmer setup working fine since I had a boost gauge installed when I bought it. So I simply spliced out of that line to illuminate the water temp gauge.
Thanks all. I may take some pics tonight for the benefit of people like me who missed electrical wiring 101.
Dave
Thanks all. I may take some pics tonight for the benefit of people like me who missed electrical wiring 101.
Dave
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