electrical question

[Shark]

Hi there,

One for anyone with Defi gauges already wired in.

The control unit for the gauges needs :
A permanent power supply [fine, get that from stereo]
A swithced power supply (ignition) [also from stereo]
A switched power supply (lights) [I\'m stuck.]

where have you guys taken the lighting power from?

Thanks in advance for help.

[sdminus]

I dont own one of these contrapcions but you would need a illumination switch wire i would think. ( so it knows when the lights are on )
scott:D

[Shark]

exactly right mate.
Just not sure where to find one of the buggers.

I was going to tap into the light for the foglights on the transmission tunnel, simply because that\'s easily accessible and there\'s plenty room to work.  Had enough upside down footwell shenanigans with my turbo timer.

Unfortunately there are 4 wires going into the foglight switch and I can\'t figure out which one is the switched supply for the bulb.

Anyone got any ideas ?

[sdminus]

Try the ash tray lamp. think this just comes on with the lights.
Scott

[K1HKS arse]

or bulb that lights cigarette lighter

[sdminus]

really steaching my lack of knoledge (whilst being attacketed by chewey) i think the switch wires are coloured red with a brown tracer  .........................
scott
gggggggggrrrrrrrrrrrrrrrrrr

cant fix my hyper drive

[Shark]

Cheers guys.

Brown with a red tracer - Will have a look.

My car is a \'96 so no ashtray present.
Also the cigarette lighters don\'t work so no option there.  Is there anyway to test with a voltmeter if the brown/red wire is the right one?  or should I just electrotap and see if it works ?

[K1HKS arse]

Find wire in question,connect voltmeter switched to 20dc and switch lights on at stalk.No ign required.

[sdminus]

Yes mate.
Step one: With lights turned on test voltage at final point of distribution
Step two: Test same point with light turned off

If voltage appeas with lights on and disapears with them off them bingo!!!!!!!!!!
scott
:cool

[Phil Bateman]

Hi Gregor,

I did what you suggested and took the wire through to the fog light switch. You want one of the small Red with Black Stripe wires.

Regards
Phil

[Shark]

Cheers Phil  !!

gonna borrow a voltmeter from a friend just to be sure in case the buggers used diff coloured wires!

[sdminus]

SHARK !!
There is a illumination switch wire for the stereo. all the dash lights and dials
Audio illum is red brown on the way in and red green on the return.
This colour should be continious through out the loom. you dont need a volt meter.
Get a illumination lamp. connect the correct side to earth. conect a fly lead to the live side and search for the correct wire.
If not find the wifre on the stalk it will tally up.
Pm me if you are stuck
scott

[SCOOMER]

SHARK,

Sdminus is right, use the illumination switch wire on your stereo!

Thats the wire i used on my DEFI gauges.

[sdminus]

Them defys are ver nice my man
scott

[wiggy]

Having just done mine its the white wire going to the stereo plug  works a treat and looks luuuuuurvly:D