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Connects2 CT53-AU04 Active System Adaptor

5 Stars 5
Quickfind Code - 35507
Quick Summary:

CT53-AU04 - Active System adaptor ISO for Bose Systems Audi A2, A3, A4, TT MK1

Condition: New

This product has been discontinued

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Sorry, this product has been discontinued. please call us for alternatives

Compatible with Vehicles

Active System Adaptor - Connects2 CT53-AU04

Audi Active System Adaptor ISO with level adjustment for BOSE Amplified Systems

Used when changing audio system on Audi A2, A3, A4 and TT MK1
Compatible with ISO connections and Bose amplified systems only - these generally have a Bose logo on the front door speakers. Please note that some owners may have added the Bose logo to give the impression that the vehicle has the extra Bose amplifier - check stereo wiring. If there is no middle 8 pin ISO speaker plug the system is Bose.
Interface has adjustment controls to balance audio levels between front and rear speakers
Prevents stereo thump and alternator whine when changing stereo
Models after 2001 are generally CAN bus based and will require a connection to be made to the fuse box when installing the kit.

Vehicles built in 2006 / 2007 - you MUST remove stereo to check if it uses ISO connectors. On these years it can either be ISO or Quadlock.
If you have the RNS-E Navigation unit this part is NOT compatible.
This part is NOT compatible with Quadlock connectors

This product has been developed through carefully documented data and research. Connects2 Ltd. or Car Audio Centre cannot be held responsible for discrepancies/inconsistencies that may occur due to vehicle manufacturing changes or options, or damage that may occur in the vehicle during the installation of components. All application data is subject to change.

Please check the connections in the vehicle match the harness you are purchasing.

Download image of Connects2 CT53-AU04 Click here for Image of Connects2 CT53-AU04
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Fitting Services

Need help with Installation?

Here at CarAudioCentre we offer a professional and reputable fitting service in all our stores. For all fitting enquiries and bookings please visit or call one of our nationwide stores. Our fitters can install your new car stereo, DAB radio, audio visual, speakers, subwoofers or amplifier. We can also help to connect your iPod or MP3 player to you existing audio unit and can offer the best advice on the right in-car entertainment for your vehicle, to further this more we also offer a total 100% custom installation service for demo and show vehicles. So if you have an idea come on in and run it past us, the possibilities are endless and we are never too busy for an enthusiastic chat about our favourite subject.

Please note:

"That our two year warranty on products is only applicable to purchases made directly from us and that have been fitted in one of our stores."

Our Stores:

120 - 122 Alfreton Road, Nottingham, Nottinghamshire, NG7 3NR
Tel: 0115 9624 986
743-745 Eastern Ave, Newbury Park, London, IG2 7RT
Tel: 0208 599 2368
835 Garratt Lane, Tooting, London, SW17 0PG
Tel: 0208 971 9181