byrnie_2004 
Member 
 
Registered: 11th Mar 07
 Location: Marple, Greater Manchester 
User status: Offline 
 
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I've just got a jvc headunit, and it plugs straight into the existing corsa wiring, ISO type connection (Just the double plug, not the larger one). 
The headunit works and i can play music etc, but only my front tweeters work and not ANY speakers!  
Is it because i haven't got an adapter for the larger connecter block?  
i heard this was for other vauxhall connections, can anyone tell me what it is for? 
Do i need some sort of ISO adapter? 
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deano87 
Member 
 
Registered: 21st Oct 06
 Location: Bedfordshire Drives: Ford Fiesta 
User status: Offline 
 
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What age is the Corsa? 
 
If it's a late one, you shouldn't need any additional harness. The one supplied with the headunit should go straight into the car loom. Are you sure you have it connected properly, the right way around etc?
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byrnie_2004 
Member 
 
Registered: 11th Mar 07
 Location: Marple, Greater Manchester 
User status: Offline 
 
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its a 1997 sport, i've not got the one supplied with the headunit because i bought it of my mate.  
i've plugged the headunit directly into the corsa loom, i've got a feeling i need an adapter to get the speakers working. 
 
something like this??? 
 
  
 
[Edited on 09-09-2008 by byrnie_2004]
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breezey 
Member 
 
Registered: 10th Jun 08
 
User status: Offline 
 
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i have the same year corsa.. and a JVC headunit. Mine plugs in fine to the original loom.  
Is the headunit new or used? it may be dodgy mate.
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byrnie_2004 
Member 
 
Registered: 11th Mar 07
 Location: Marple, Greater Manchester 
User status: Offline 
 
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used, but i know its not dodgy because my mate had it working fine in his car (polo). i've ordered one of them things^ see what happens. 
got a feeling the speakers are disconnected somewhere.
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