Just hitting you with an idea to start, I see you have a standard radio, and I see your car is second hand. The reason I say this - to make a sub work on a standard player you split off the 2 back speakers to make a sub work as the blue cable isn't compatible on standard units hence why people split them off loosing back speakers.

Edit - So maybe best to pop the cd player out and check the wires in the back

 

Yes, I think I need to get bending some welding wire!

 

What trim code is this Corsa D ?

 

It's a Club - is that what you need to know? Has steering wheel audio controls, but the radio (despite saying 'MP3' on it) seems to be the model before the Aux input arrived (sadly!).

 

I finally got round to pulling the radio out and having a fiddle with a multimeter. The wires are there, but they're open circuit (between + & - for RL and RR) so no speaker. But does the fact that there are wires there mean that the loom goes all the way to the speaker location, I wonder? And where would you buy the speakers anyway?

 

thats very odd, at a guess the old owner purchased upgraded speakers and removed them upon selling and didnt put originals back? best to go scrappy they are fitted as standard, wouldnt be too hard to run speaker wire if there isnt any

 

Thread revival! I took the side panel off - speakers are there, they read 4 ohms across the terminals. I checked each wire individually, front to back - no continuity on either. Colours match up. No sign of damage on either end, up to the point where they disappear into the loom. Most mysterious. And frustrating.

I can't quite be bothered to start running new wires - it's a bit of a bugger having to to take the seats out!

Don't suppose anyone has any thoughts, before I give up?

 

Faulty wires must be in the loom then ?

 

That would seem logical - but the damage would have to be oddly selective? Only the rear speakers are not working - if there had been damage, you'd think something else would be faulty too.

 

Look carefully around the glove box area, as someone else mentioned, cutting the wires to the rear speakers so as to drive a sub-woofer is quite common.

 

Ah thanks, bogbody! Now I feel like a prize plum - I didn't re-read all the messages in this thread, and that one now makes sense; there are some mystery blue wires that I've unearthed (taking the seats out) that run to the boot and end unconnected. I've had a quick search of how to fit a sub (with the idea that that might give me some clues as to how to 'undo' the job), and that supports your idea. More investigation required.

 

Rejoice! We conquer. There was nothing behind the glove box, but I pulled the sill covers up and there it was - speaker wires cut and spliced into the subwoofer wiring. I'll get the soldering iron out tomorrow and fix it.

Cheers

 

Now thats what I call a result!

 

Lesson learnt, read the first comment as it had the solution to fix the problem