Electrical feed for boost gauge install? Anyone done it before?!

[s2dude]

ok. so the boost gauge is intalled and reading vacuum correctly but I cant see it!!
It needs a switchable feed off a lighting circuit and Im just tapping the brain of anyone whos installed one of these to get the easiest and safest route of install??

This is the wiring diagram given in the instructions....all ideas gratefully appreciated...ideally without having to rip half the dash out

I was thinking take the feed off the row of lit switches below where th gauge is installed. Its in the centre of the three air vents

it is an AutoGauges mechanical gauge.....

[Jas11n]

I powered mine off the glove box light as that only works when you have the headlights on.

[newsh]

Yep glovebox light for me too, easy to get at and goes on and off with the lights.

[Jamo]

I took mine of the aux gauges, easiest place is the radio iso if present (blue and white wire).

I didn't have one for the radio so i created one to the iso of the aux gauges as well.

[neebover]

Mine wired up also behind stereo housing.. easiest place and most accessible..

[s2dude]

I took mine of the aux gauges, easiest place is the radio iso if present (blue and white wire).

I didn't have one for the radio so i created one to the iso of the aux gauges as well.

Cheers for that guys

Can you elaborate a bit Jamo//

First...what the **** is the radio iso?? tho Blue and white I can do!!!!

Also//

what amp fuse do I need? and where is a good ground to use? and do I just find the blue/white wire going into the stereo and tap into this?

CHeers

I need this boost gauge light up day and night as I cant see nada with no light


THANKS GUYS

[s2dude]

ok guys...
so having started to do the gauge wiring I realised I had posted the wrong diagram up!!!

So heres the correct one///

IN a nutshell.
What are the best places to take feeds from?
can I just take the ignition switch feed and 12v lighting from the Stereo ignition switch feed? (Im presuming it must have one) and the Stereo ISO (blue and white Jamo said) ....

Whats the best way to find the stereo ignition wire?? multimeter and turn igntion on while testing each wire??

TIA