A4 B6 Cabriolet BOSE Retrofit - Help Needed

I was wondering if anyone could help me with some questions I have on retrofitting Bose to an A4 Cabriolet ?

1. Do I need to change over the wiring looms, or just rewire new plugs/connectors?

2. I have wired in the 2 rear speakers, but cannot figure out the front dash speakers as they have 4 wires either side, and the BOSE speakers only need 2 ?

3. Also the centre dash speaker has different coloured wires, which way round do they go?

4. Do I need to run a new loom from the head unit to the BOSE amp in the boot ?

It would be greatly appreciated if anyone could help me out, as I have most the bits, and a week off work to get the job done.
A wiring diagram or pictures would be a great help.

Thanks in advance.
Ben

Hmm, Did this upgrade a few years back.

Wiring diagrams attached. note how it works de[ends on the Bose amp you got so make sure to look up the connections as there are several different versions.

You need the microphone as well depending on the amp model.

I ran new BNC leads from the front to the rear (though I changed the radio as well from the 2 din Symphony)

Hope this helps,

W.

Attachment 1 is from Etka
Attachment 2 is what I used at the time for the amp I got (2009)

Good evening W,

Thank you for the reply, much appreciated :-)

Did you make a new loom or use the existing one that I assume runs from the HU to the Amp?
Can you remember the part number of the Bose amp you used?
Also, the wires on the standard setup appear to be a lot thinner than on the Bose wires. Do they need replacing?


Sorry for all the questions, but if the weather permits, I would like to crack on with this tomorrow now that you have pointed me in the right direction.

As said, I laid 2 Cables the length of the car (along door an through the ski hole as far as I can remember) which had BNC connectors on each end. The amp I got (amp and speakers were part of a used set) had no plug so I got a new one from Audi and created my own loom which terminated in BNC sockets for the input (output I used the cabling that is already going to the speakers as to change this would be a real pain (especially to the door speakers) and tbh, I can't see it making much difference.

Can't remember the part number of the amp but it was off a 2005 or 2006 model. I need to lay a new earth back to the radio to remove ground loop noise at the weekend so I can check if you want me to.

Attached are a few more items from my archive (I did a ton of modding back 2008 - 2011 essentially adding on EVERY audi extra from parking sensors to highline to auxiliary winter heater :) )

If you need a new plug to the amp, send me a picture and I will look up the part number for you.

W.

Awesome, thank you so much for your time.

I have a 2003 B6 cabriolet that I have face lifted.
Loads of stuff I want to do:
Heated Seats
RNSE or Aftermarket ?!?!?!
Bluetooth
Reversing Camera / Parking Sensors
Auto Dimming Mirror
Smartop
And the list goes on.

So treat me as a complete novice, but i assume that it is just 3 extra cables between the Bose amp & the HU? 2 for powering the front speakers? and 1 for the earth?
Can you remember what cable did you used ?

Thanks again, and sorry to be a pain ... I'm still learning!!!!

My BOSE amp socket/plug is the same as the NONBOSE amp in your second attachment ???

Hi,

Did you change the bumper, lights and bonnet to make it look like a B7?


Having done all the stuff on your list, here is my view:


Heated Seats - difficult as lots of wiring and getting the seat covers off is a real pain in the ..... Make sure you purchase Elsawin (repair manual) on ebay/download - will prove indispensable.
RNSE or Aftermarket ?!?!?! - Went aftermarket - originally Kenwood, now Chinese Android unit (it is great)
Bluetooth - part of the radio
Reversing Camera / Parking Sensors - look up alibaba - you can get a camera that replaces the number plate light - really cool. Need new bumper for front parking sensors (if you want to go Audi) - A guy damaged my bumper so got new one with the correct fittings.
Auto Dimming Mirror - easy enough to install - get them quite cheaply from US (Ebay) - even include a compass!! - never managed to find one in Europe. adding on the auto dimming wingmirrors was fairly tough and the glass itself is expensive.
Smartop - easy mod and should be nummero uno!!!

if you do a search on this forum you will find a full list of all my mods.

W.

Weird, send me the part number for the amp and I will check it up. note the ones I sent is what I found in 2009/10.

W.

Attachment 27749Attachment 27746Attachment 27747Attachment 27750

Part No. is: 8H0 035 223 B