Question about Sony CDX-M8800 CD Player

3 Answers

Sony cdx-m8800 Hi Guys, I have recently had a problem with my car alarm and battery, and as a result my sony cdx-m8800 headunit is asking for a security code. I don't know what it is or what it has been set as, as the headunit was in the car when I bought it. I need a security code, any suggestions/help on what to do? Cheers

Posted by on

  • 3 more comments 
  • Anonymous Jan 15, 2008

    hi yes i have the same problem as you mate maybe we could work on this together cheers paul

  • mohmyster Feb 27, 2008

    I got myne sorted in the end, it cost £9.99, transferred via paypal, and the master code for sony was given to me that worked, but you have to have the head unit remote for it to work. Each code is individual and they will require some details from you to tell you your code. Let me know if you need their details, some people tried to quote me £50/60 pounds to try and rip me off. In the time being try my code, 0475, I dont think it will work as they have to get some details from you to get your code. Cheers

  • oscarmyer Mar 27, 2008

    on my sony cdx-m8800 everything works but i dont have on front pannel

  • shivanthin Dec 25, 2008

    After getting my car sercviced it asking 4a code. I never entered any code. what can be the default code and how can break the code?

  • Anonymous Feb 08, 2009

    I have the same prob... bought the car with deck installed... now asking for code and previouse owner never mentioned anything. It's a sweet deck... wish it worked!



3 Answers

Send an email to [email protected] and ask them for info, they'l price up code and tell you what you need to do. cheers

Posted on Feb 28, 2008


  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 4 Answers

Can you please give me the name of the person who decoded the unit for you i now have the sony cdx-m9900 model and have the same problem asking for code cheers paul.

Posted on Feb 28, 2008


  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

.Hi guys. had the same problem & couldn't get the security code. Had to enter 0000 0001 0002 0003 0004 until I got it. Worked though

Posted on Feb 27, 2008

1 Suggested Answer


6ya staff

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Im trying to install my sony m8800 in the house with a pc power supply can you tell me which wire goes where many thanks

Hi:) If you want the install file for the CDX-M8800 send me a email and i will send it with return email.
[email protected]

Mar 09, 2011 | Sony CDX-M8800 CD Player

1 Answer

I've had the battery changed on my car and now my stereo is asking for a security code. I'm the third owner and the stereo was already installed when I bought the car. Any help greatly appreciated as I...

Hi :) On the back or top of the radio there is a stick with a model number and a serial number and a security number I need the security number to give you the code so if anybody needs the code give the serial and the security number with your question.

Dec 04, 2010 | Sony CDX-M8800 CD Player

1 Answer

Sony xplod cdx-2250 in need of code

you need to contact sony at their website and request the code. make sure u have ur serial number handy

Aug 31, 2009 | Car Audio & Video

2 Answers

Need security code for my sony cdx-m8800

Sony CDXM8800 Radio Codes are available from the website -

Aug 07, 2009 | Sony CDX-M8800 CD Player

1 Answer

I need a security code for my headunit a sony cdx-m8800

Sony Radio Security Codes Are Available Instantly Online From Instant Radio Code UK

Aug 07, 2009 | Sony CDX-M8800 CD Player

1 Answer

Faceplate will not open

Perhaps something is not installed correctly physically. Sometimes if something is a little twisted the way the unit is installed it will keep it from opening properly. Try moving the unit slightly and see if that helps.

Mar 15, 2008 | Sony CDX-M8800 CD Player

1 Answer

Where can i find wiring harness

they might have some at like walmart,a pawnshop, or even try the ebay

Jan 21, 2008 | Sony CDX-M8800 CD Player

1 Answer

Sony cdx -m8800

Remove the radio, disconnect the blue wire, and connect the blue/white wire in its place. This should fix your problem.

Sep 08, 2007 | Sony CDX-M8800 CD Player

2 Answers

Sony Headunit CDX-M8800

see if the fuse on the radio is ok and if you realy have 12V power. see also in the radio the soldering point's of the conector of the power

May 06, 2007 | Sony CDX-M8800 CD Player

Not finding what you are looking for?
Sony CDX-M8800 CD Player Logo

Related Topics:

552 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

5013 Answers

Larry Stiles
Larry Stiles

Level 2 Expert

288 Answers

Dalynn Turner

Level 2 Expert

346 Answers

Are you a Sony Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides