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#816861 - 16th Aug 2013 9:23am astra h to single din
joeblogs Offline
Smartchild

Registered: 8th May 2011
Posts: 399
Loc: bebington
as above i have all the bits fascia adapter put it all in and there is a long red wire that needs to be connected so head unit wont even come on? i have no idea about car electrics?

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#816865 - 16th Aug 2013 9:37am Re: astra h to single din [Re: joeblogs]
chris123 Offline
Smartchild

Registered: 1st Mar 2010
Posts: 607
Loc: wallasey
youll need a wiring harness adaptor like this:

http://www.ebay.co.uk/itm/Vauxhall-Astra...r-/130575987169

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#816876 - 16th Aug 2013 10:07am Re: astra h to single din [Re: chris123]
joeblogs Offline
Smartchild

Registered: 8th May 2011
Posts: 399
Loc: bebington
got it,theres a red wire that needs to be connected to something i get no power to head unit

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#816882 - 16th Aug 2013 10:58am Re: astra h to single din [Re: joeblogs]
rhoobarb2002 Offline
Veteran

Registered: 13th Aug 2011
Posts: 686
Loc: Wirral
The red Wire is for an extra power feed, you will need to run it to a switched power source in the fuse panel.


Edited by rhoobarb2002 (16th Aug 2013 11:00am)

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#816883 - 16th Aug 2013 11:08am Re: astra h to single din [Re: joeblogs]
rhoobarb2002 Offline
Veteran

Registered: 13th Aug 2011
Posts: 686
Loc: Wirral
Tried to add explanation but post edit time ran out smile

Anyway....

An aftermarket car stereo generally has 2 power inputs.

Constant Live and Switched Live. The constant live is to keep all your settings, etc. The switched is to turn the stereo on only when the ignition is on (stop the stereo draining the battery)

Some factory head units rely on an electronic system to tell them if the ignition is on or not so do not need the switched live. This is why the harness comes with a red switched live wire as your aftermarket stereo will not be able to use that system.

Its not hard to wire to the fuse panel.


Edited by rhoobarb2002 (16th Aug 2013 11:08am)

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#816928 - 16th Aug 2013 3:45pm Re: astra h to single din [Re: rhoobarb2002]
joeblogs Offline
Smartchild

Registered: 8th May 2011
Posts: 399
Loc: bebington
ok how much to wire it up?

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#816932 - 16th Aug 2013 4:08pm Re: astra h to single din [Re: joeblogs]
rhoobarb2002 Offline
Veteran

Registered: 13th Aug 2011
Posts: 686
Loc: Wirral
To do it yourself? A couple of quid.

How electronically/electrically minded are you?

Scotchlok/wire tap connectors are a cheap god send for those who are not so brave when it comes to wiring.

Like these:
http://www.maplin.co.uk/snap-lock-connectors-43076


Edited by rhoobarb2002 (16th Aug 2013 4:12pm)

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#819895 - 28th Aug 2013 12:46pm Re: astra h to single din [Re: rhoobarb2002]
nurvware Offline
Newbeee

Registered: 27th Aug 2010
Posts: 29
Loc: Upton - Wirral
When i fitted a sterie to my Astra G, there was a constant live and switched live, on was orange and one was red with a quick release connector. it was a case of disconnecting on of the wires half way along and connecting to the other wire.

So it yous is the same, you will probaly end up with a half orange, half red cable.

hope this helps.

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#820659 - 31st Aug 2013 12:06pm Re: astra h to single din [Re: joeblogs]
s7uajones Offline
Enthusiast

Registered: 14th Jan 2013
Posts: 196
Loc: Wirral
Put bigger speakers in it make a DIN then

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#821828 - 4th Sep 2013 10:46am Re: astra h to single din [Re: nurvware]
rhoobarb2002 Offline
Veteran

Registered: 13th Aug 2011
Posts: 686
Loc: Wirral
Originally Posted By: nurvware
When i fitted a sterie to my Astra G, there was a constant live and switched live, on was orange and one was red with a quick release connector. it was a case of disconnecting on of the wires half way along and connecting to the other wire.

So it yous is the same, you will probaly end up with a half orange, half red cable.

hope this helps.


Older cars did use both, but a lot of newer car factory stereos rely on the onboard computer/electronic/CANBUS system to tell them the ignition is on or off, so have done away with the switched wire in the factory harness.

Hence the spare wire in the aftermarket loom to wire to a switched live at the fuse panel.

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