Electricians.. Which wire?

[S1LRD]

Want to hardwire my snooper in via the rear of the cig lighter but i've came across these 3 wires......... I asume the brown is the negative, but which of the other two do i run my Positive feed off??
Thanx

 

[m0rk]

one will be a light.... as most cig lighters 'light' up

the blue? one looks smaller guage, so I would guess that's the one for lights.

is the other one red? in the middle? my bet would be that's the +ve

sorry to sound like a retard, but I'm pretty colour blind.

 

[S1LRD]

yeah it is red with a very thin blue line down it. soz pictures aint all that clear. So u think go ahead with the red wire?

 

[leegt5]

have you got a multimeter ?? As mork said i'd go for the red being the +

 

[S1LRD]

No not got a multimeter, think i'll go for the red, the blue does line up with the light connection so cant be much else.

 

[PhilW]

I'm guessing the red is positive, white/blue being switched, brown negative.


The blue/white wire looks like the one i wried my boost gauge too behind the light switch which is part of the dash lights/dimmer adjuster.

 

[acidstrato]

the blue one is for the light, i just stripped it to connect the the back light of my boost gauge

easy when u know how

 

[ibizacupra]

you are gussing the polarity of the wires for hardwiring your snooper?



Volt meter dude... it will save you buying another snooper from reversing its polarity and popping it!

 

[S1LRD]

what do you mean bill? polarity?? which way round do you think the wires are?

 

[S1LRD]

All fitted, went with the red wire. i know it was a little guess, but i was using a proper hardwire wiring kit with a converter and fuse, so at worst i would of blown a fuse! all went well and is in nice and neat. thanx for the help, i'll get hooked up with a multimeter for next time.

 

[ibizacupra]

what do you mean bill? polarity?? which way round do you think the wires are?

polarity... as in +ve & -ve

all sorted now.. glad for you.
fuse would'nt always stop a reverse polarity killing your device.