mattk
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Registered: 27th Feb 06
Location: St. Helens
User status: Offline
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the Grande Radio doesnt have a Pre out for a sub, and due to the fone system im not buying a new radio, I want to keep the standard one, a new one isnt an option
Ive found a (very vauge ) guide about using the rear speakers as a pre out
is it a case of buying the adaptor which is 2 phono leads ( red and black ) and connecting the +/- wires from each speaker to the respective wires on the adaptor?
then I can....
+12v - no probs, straight from the battery
Remote - +12 switched live
Earth - to body
+/- to sub
 or  or just plain  ???
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antoni
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Registered: 30th Dec 07
Location: irlam, manchester
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my set up is wired independantly, that way i can have my music without the sub etc
using your rear speaker wires is the best way for you to do it, you can even cheekily still use your rear speakers if you splice the wires 
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mattk
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Registered: 27th Feb 06
Location: St. Helens
User status: Offline
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yeah I was gonna splice them behind the HU and run them with the +12v in the sills
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Jon_C
Premium Member
Registered: 7th Dec 05
Location: Suffolk
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I have been lookin into this for my girlfriends corsa D. From what i understand you can get the wires you were on about from Halfords for about 7 quid.
Buttttttttttt if you use them you need another amp to run the rear speakers as its not just a case of splicing into them.
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mattk
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Registered: 27th Feb 06
Location: St. Helens
User status: Offline
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yeah the adaptor is in halfords at 6.99
this just got alot easire, as it turns out the GP came with an optional passive sub in the boot and ive just found the loom for it 
In the boot I now have the rear speaker wires an earth a +12 and a remote 
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antoni
Member
Registered: 30th Dec 07
Location: irlam, manchester
User status: Offline
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the problem with the stock power wire is that its reyt thin dood, it wont be able to supply enoguh power for most amp/sub combo's
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mattk
Member
Registered: 27th Feb 06
Location: St. Helens
User status: Offline
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im gonna put my own +12 from the battery so I know I have inline fuses in, Im gonna use my own earth to
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pow
Premium Member
Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
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Mr Matt 
I did this on my cleeeeeoooo
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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IIRC, you need to splice the + from one speaker and the - from the other, to make the amp 'see' the 'missing' signal.
That's how I did mine.
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pow
Premium Member
Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
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Robin 
The best way to do it is at the headunit end, then run the RCAs down the car. Had a disaster trying to do it from the rear speakers in a Mk6 Fezza
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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What?
That's what you do when you want a centre speaker in a home stereo setup, the same applies in a car.
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mattk
Member
Registered: 27th Feb 06
Location: St. Helens
User status: Offline
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Had it working today in a very primitive state involving tape, Il wire it tomorrow and it should be ok
cheers for your help
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