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Connects2 CT51-PO04 Active System AdaptorCT51-PO04
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Fit it Yourself?

Everything you need to fit it yourself at home

Only £30.00 

With Steering Wheel Control
Only £50.00 

4 Stars (2)

Connects2 CT51-PO04 Active System Adaptor

4 Stars
2 Review(s) / write a review
Quickfind Code - 35479
Quick Summary:

CT51-PO04Porsche 911, Boxster, Cayman Active System Adapter

Condition: New

Special Order Item! (Lead time: 5-7 Days)
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  • Easy Returns Easy Returns

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Compatible with Vehicles

Active System Adaptor - Connects2 CT51-PO04

This adapter allows an aftermarket head unit to be installed, while retaining the factory fitted amplified system. This adapter is designed to match the correct impedance of the vehicles speaker system.

Plug and Play
Park Brake
Amp Retention
Compatible with following vehicles:

Porsche 911 2004 - 2008 For Fibre Optic Amp Retention. Includes Cable For Vehicles With ISO Connector
Connection: Mini ISO
Porsche Boxster 2004 - 2008
Porsche Cayman 2005 - 2009

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 CT51-PO04 Click here for Image of Connects2 CT51-PO04
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Customer reviews

Martyn Philo on 02/04/2020 3 star rating

Unfortunately this didn’t meet my expectations. I expected after replacing my Porsche CDR24 headunit (with BOSE) that it would at least provide the power support experience I had with the old unit. While it powered up the system ok and sounds find their way to the speakers you are left to find your own power on ignition key insert and switchable power to support the BOSE amp. Not exactly plug and play so still feeling a little frustrated...

MARKNATTRASS on 22/11/2018 5 star rating

Excellent interface to plug and play into any head init. I chose a Pioneer to bring me upto date with apple CarPlay etc....

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Questions/Answers About This Product
  • Question: 03 February 2021
    Car: Porsche Boxster - <2008

    Hi, I have a 2002 Boxster 986 with CDR23 and BOSE. I want to retain the amp and upgrade to a double DIN unit. Will this harness work for me?


    You will need the below fitting parts

    CT51-PO02 Porsche 911 Boxster Bose Active System Adaptor
    Porsche Double Din Fascia Plate (Black)
    CT27AA08 Aerial Adaptor

    Found Useful? Yes 

  • Question: 13 November 2020
    Car: Porsche 911 - 1998-2004

    Hi I orded this from you on the10/11/2020 order number can 1417114 as from 21hrs not arrived could give me an idea when I'll get the item


    Please contact the on-line sales team on 0330 320 5050.

    Found Useful? Yes 

  • Question: 07 November 2020
    Car: Porsche 911 - <2008

    Hi radio in car is cdr23 fibre optic looking to upgrade stereo. I have porsche Carrera 4s 996 2005 dose your connect2 CT51-P004 work for me......


    The CT51-PO04 is teh correct adapter for your Porsche long as it does not have steering controls.

    Found Useful? Yes 

  • View All
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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:

542 546 Mansfield Road, Sherwood NG5 2FR
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