Help Ian

[awolfinsheepsclothes]

Hi I've just fitted a new aftermarket heads unit with a iso adapter kit of eBay and my front speaker aren't working! my question is this I can't seem to find the front speaker connector on the loom behind the head unit!
Have I pushed it out of view?
Or as its Bose do the front speakers run of the rear amp and I'm i looking for a connector not fitted to my car!
Do I need to run fresh speaker wire from the head unit?
Or is is it just that I've purchased a crap adapter kit ( I think so I've already had to sort out its permanent live feed)
Thanks in advance Dave

[HPsauce]

What did you have before, an RNS-D with Bose?

If so, see the attached connector diagram; Bose would use the 4-channel Line Out connector which includes an "amp on" signal (not sure what it is though).

Note that the 20-pin connector covering CD/Display/LineOut comes in 2 versions. One is a single block, the other is splittable and typically blue/green/yellow.

[PsYcHe]

The permanent live thing is a common issue on aftermarket gear.

But as above.. if you've got Bose, then you'll need to re-jig the speaker connections to feed there.

[awolfinsheepsclothes]

Yes it's a rns-d and I've seen the pin out sticker on the rns-d that's what makes me think the cable has fallen back into the dash out of sight, I did fit it in the dark with a torch. I'll pull the side panel today and have another look, I think there are 4 multi plugs on the rns-d and I think I unpluged 4! But I've slept since then!! Cheers dave

[ainarssems]

With Bose all speakers are driven form Bose amp, none directly from radio.

Connector C is actually three separate connectors dovetailed together. It may not be present at all - sometimes, only parts of it are present. It usually comes attached to the device it supports:

C1 - external amplifier or equaliser
Pin 1 - Line out left rear
Pin 2 - Line out right rear
Pin 3 - Line out ground
Pin 4 - Line out front left
Pin 5 - Line out front right
Pin 4 - +12v switched - maximum 150mA
C2 - remote control
Pin 7 - RXD
Pin 8 - TXD
Pin 9 - Chassis ground
Pin 10 - +12v switched - maximum 150mA
Pin 11 - Remote control in
Pin 12 - Remote control ground
C3 - CD changer
Pin 13 - CDC data in (bus)
Pin 14 - CDC data out
Pin 15 - CDC +12v permanent
Pin 16 - CDC +12v switched - maximum 300mA (+A)
Pin 17 - CDC data ground (+U)
Pin 18 - CDC audio frequency ground
Pin 19 - CDC audio frequency left
Pin 20 - CDC audio frequency right

Look at the connector C, looks like you got adapter kit for non Bose cars which only connects line-out for rear speakers and assumes front speakers will be driven directly from unit. You will need adapter kit specifically for Bose for all 4 outputs which connects all pins in C1.

You will probably need a kit that takes signal from speaker level output and connetcs it through resistors to amp as most aftermarket radios use 1.5V line-out but audi system 3.5V so if you run it from line-out it will be very quite.

Looks like this one should do the trick: http://www.ebay.co.uk/itm/Radio-Adap...item19e3871780

[awolfinsheepsclothes]

Thanks that looks a bit more like it!

[awolfinsheepsclothes]

Had a bit of a look today and just to check popped the old head unit back in to check the front speakers and the worked fine! looked at my red adapter and the front speaker line outs are missing. my kit is for rear bose only!!
Cheers dave

[HPsauce]

Problem identified, potentially solved. And no sign of Ian.

[kal_ay]

Originally Posted by HPsauce

Problem identified, potentially solved. And no sign of Ian.

He is probably busy unleashing the 450 horses under his right foot somewhere

[IT]

Originally Posted by kal_ay

He is probably busy unleashing the 450 horses under his right foot somewhere

harhar...

Actually, I've been on the train picking up a new car....

Its 4 rings, but sub 100 bhp (well sub), non quattro and got a handful of faults.

and I love it