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9th April 2013, 11:08
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#1
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Established Member
Join Date: Aug 2012
Posts: 2,009
Car(s): Saxò VTS 16v
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Voltmeter gauge and headunit wires.
Hello,quick question,is it possibile to connect a voltmeter to the headunit wires that i don't use?
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9th April 2013, 17:54
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#2
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Regular Poster
Join Date: Jul 2012
Location: Chesterfield
Posts: 355
Car(s): White mk2 vtr
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I just weird mine up to the ignition wire. Only a 5 min job. Iirc itd the big red wire coming from the key slot.
Just shave the wire then solder the volt gauge wire onto it or twist and tape.
Then just find an earth.
But you could tap into the head unit power cable . May not be as accurate reading
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9th April 2013, 18:14
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#3
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Established Member
Join Date: Aug 2012
Posts: 2,009
Car(s): Saxò VTS 16v
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Okay thanks for the info,what colour is the earth? if i remember correctly i didn't see any black wire in the headunit loom.
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9th April 2013, 21:42
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#4
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Frequent Poster
Join Date: Dec 2010
Location: Newcastle
Posts: 571
Car(s): 2002 Black Saxo VTR (gone)
2002 White Saxo VTR
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Could use cigarette lighter wires
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9th April 2013, 22:12
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#5
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Established Member
Join Date: Aug 2012
Posts: 2,009
Car(s): Saxò VTS 16v
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I already thought of that but i need the cigarette lighter for the GPS.
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9th April 2013, 22:23
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#6
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Saxperience Forum Bum
Join Date: Dec 2012
Location: Perth
Posts: 3,663
Car(s): Peugeot 106 1.1 Turbo
Peugeot 106 1.5D Turbo
Peuge
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Quote:
Originally Posted by VeiRoN
I already thought of that but i need the cigarette lighter for the GPS.
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The earth is Green at the back of the stereo.
You should get the same reading there as you would at the ignition switch.
I think red is the switched feed. I seem to remember swapping red and yellow wires when installing my HU.
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The Following User Says Thank You to MartinObviously For This Useful Post:
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9th April 2013, 22:38
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#7
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Regular Poster
Join Date: May 2011
Location: Weston Super Mare
Posts: 262
Car(s): 2003 Icelandic VTR
2003 Zafira GSI
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Green and Yellow is Earth in all of the saxo loom.
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The Following User Says Thank You to Nick_Bush For This Useful Post:
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9th April 2013, 22:40
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#8
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Saxperience Forum Bum
Join Date: Dec 2012
Location: Perth
Posts: 3,663
Car(s): Peugeot 106 1.1 Turbo
Peugeot 106 1.5D Turbo
Peuge
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Quote:
Originally Posted by Nick_Bush
Green and Yellow is Earth in all of the saxo loom.
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Ahh I see  It's just green on my 106 :o just assumed saxo would be the same.
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9th April 2013, 22:47
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#9
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Established Member
Join Date: Aug 2012
Posts: 2,009
Car(s): Saxò VTS 16v
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So red should be the switched feed,will try and let you know on here,thanks everyone. 
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9th April 2013, 23:26
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#10
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Frequent Poster
Join Date: Dec 2010
Location: Newcastle
Posts: 571
Car(s): 2002 Black Saxo VTR (gone)
2002 White Saxo VTR
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Quote:
Originally Posted by VeiRoN
I already thought of that but i need the cigarette lighter for the GPS.
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my mate had his here and could still use the socket for sat nav or phone charger etc, as the wires were just spliced into
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10th April 2013, 00:34
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#11
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Established Member
Join Date: Apr 2007
Location: Alderley Edge,Cheshire
Posts: 1,048
Car(s): 1.6 VT?
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Quote:
Originally Posted by Forbes_VTR
I just weird mine up to the ignition wire. Only a 5 min job. Iirc itd the big red wire coming from the key slot.
Just shave the wire then solder the volt gauge wire onto it or twist and tape.
Then just find an earth.
But you could tap into the head unit power cable . May not be as accurate reading
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I did this but got a shit reading think I'm gonna do it to the Headunit hat guage wire do I need?
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Originally Posted by LSOfreak
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TwoTone VT Polished BBS and Buckets
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10th April 2013, 12:54
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#12
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Saxperience Forum Bum
Join Date: Dec 2012
Location: Perth
Posts: 3,663
Car(s): Peugeot 106 1.1 Turbo
Peugeot 106 1.5D Turbo
Peuge
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Quote:
Originally Posted by GTuff
I did this but got a shit reading think I'm gonna do it to the Headunit hat guage wire do I need?
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Use any guage you like, volt meters draw next to no current.
8 core would do the job 
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13th April 2013, 16:27
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#13
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Established Member
Join Date: Aug 2012
Posts: 2,009
Car(s): Saxò VTS 16v
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Just done the job,can confirm that the grey wires are the permanent feed so the red ones are the switched ones.
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The Following User Says Thank You to VeiRoN For This Useful Post:
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13th April 2013, 19:13
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#14
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Regular Poster
Join Date: Jul 2012
Location: Chesterfield
Posts: 355
Car(s): White mk2 vtr
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I just made my own earth to the chassi of the car.
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18th April 2013, 12:17
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#15
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Established Member
Join Date: Aug 2012
Posts: 2,009
Car(s): Saxò VTS 16v
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Quote:
Originally Posted by VeiRoN
Just done the job,can confirm that the grey wires are the permanent feed so the red ones are the switched ones.
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Sorry for the wrong info but using the red on mine didn't work,i connected it to the yellow/green for the ground and to the bigger grey wire for the switched feed,took a pic of the 2 wires i used:
Black --- Yellow,Green wire
Red --- Grey wire
Again,sorry for the misleading information.
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