Question about Kenwood Car Audio & Video

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I have a kdc mp728 i changed my battery now it is asking me for a security code i have never entered one is there a master or default one around

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It should be in the manuel that came with the stereo

Posted on Jun 12, 2008

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I have lost the security code for my kenwood cd receiver. The model is KDC-MP4033S. Serial number is KE1202U0900623.


Hi,

Unfortunately Kenwood Radios can only be decoded on a bench and must be connected directly to specialist software. They cannot be decoded via serial alone. There is however a special procedure that can be used to bypass the security on these units using a master code 5227 (KCAR) which I will outline below.


Oct 15, 2011 | Car Audio & Video

2 Answers

Ulock code kdc-mp5028


Type 1
During the code request mode, while holding the DISP key depressed, press and hold the Volume UP or DOWN key for 3 seconds (so that “…” disappears).
Then using your remote enter your code.

Type 2
Press the "Auto" button and "Track up" on face of radio at the same time. The four dash lines ( . . . . ) should "disappear".

Then using your remote enter your code.

Type 3
Model# DPX-4020 and DPX-4030
Press and hold the 1 then the 6 preset key (preset keys are the buttons on face of radio for storing you "favorite" radio stations). "C" should display.
Then using your remote, enter your code.


Enter your number from the remote control unit. Your code number is 5227 (KCAR)

* Press numeric key “5” ( 2 times ) and press the Track UP/Next Track key
* Press numeric key “2” ( 3 times ) and press the Track UP/Next Track key
* Press numeric key “2” ( 1 time ) and press the Track UP/Next Track key
* Press numeric key “7” ( 2 times ) and press the Track UP/Next Track key
by Robotek

hope this helps...

Jul 30, 2008 | Kenwood Car Audio & Video

1 Answer

I have a renault clio and the battery was changed previos owner didnt keep a note of radio code details are :- model no:-22dc278/62h prod no:-fd0101350003459 security no:-tof002 rn278f10003459 can...


Welcome to FixYa.

The big problem with these security codes is that each radio carries a code that is unique and individual to the serial of radio itself. There is no master code for these radios.


Renault will charge £25 for supplying you with this code and this is why i always recommend this site which is the cheapest around at only £5.99

Just enter the serial details on site and you will have your code sent right back to your email or mobile phone. I use them regularly for radios that I repair and can confidently recommend them.


Hope it helps. Many thanks for using FixYa.

Sep 12, 2011 | Car Audio & Video

1 Answer

MY KDC-MP3342U SUDDENLY STOPPED WORKING! IT JUST KEEPS FLASHING ...'PROTECT'! REPEATEDLY! HELP!


Protect only comes on when an RCA is grounding out, speaker is blown or the speaker wires are shorting out. Check all your wiring on the head unit and see if all are insulated with tape or better and if there's an exposed wire, tape it up. Make sure that all connections are secured. Then double-check your fuses. Check all of your speakers and their wiring because going into protect mode is the units way of saying you have a problem with your speakers or wiring.

If your speakers and wiring all check out, disconnect your radio wiring harness, and then reconnect the harness. This resets your radio, and your radio should be working again.

If you need to enter the security code, try the default unlock code of 5227.

You can also try to reset your code if the default doesn't work. Try 'KCAR' or '3051'.

Jul 12, 2010 | Kenwood Car Audio & Video

1 Answer

Need security codes for kenwood KDC 4020


Common Kenwood Security Codes
Many Kenwood radios are configured with the same security codes:

KCAR - This seems to be a "backdoor" to some Kenwood models.
3051 - This is the security code which is printed in the manual of many Kenwood models.
1234 - This is a security code commonly chosen by Kenwood owners.
Entering Your Kenwood Security Code
If the car battery fails or is disconnected, the Kenwood will ask for the security code.

The procedure to enter your security code differs on various models of Kenwood car stereos. Here are three of the more common procedures:

Type 1
During the code request mode, while holding the DISP key depressed, press and hold the Volume UP or DOWN key for 3 seconds until the "..." display disappears.
Enter the security code using your Kenwood remote.
Type 2
Press and hold the "Auto" button and "Track up" (next track button on the right) on the face of radio at the same time until the four dash lines disappear.
Enter the security code using your Kenwood remote.
Type 3: Model# DPX-4020 and DPX-4030
Press and hold the 1 then the 6 preset keys until the display shows the letter 'C'.
Enter the security code using your Kenwood remote.
Entering Letters on your Kenwood Remote
To enter a letter using your Kenwood remote, press a button once for the first letter, twice for the second letter, and three times for the third letter -- then press the Track Up or Next Track key to send the letter.

To send the letter 'A', press the 2 key once and then press the Track Up key. To send the letter 'B', press the 2 key twice and then press the Track up key.

Finally, when you are done entering all of the letters, press and hold the Track Up button for 3 seconds.

The key sequence to enter the security code KCAR is:

5
5
Track Up
2
2
2
Track Up
2
Track Up
7
7
Track Up
Your Kenwood should then enter tuner mode.

A Security Code Bug in some Kenwoods
There is a reported bug in the security code handling of some Kenwood stereos. In models with thie bug, the security code is stored incorrectly. The workaround is to enter the wrong security code.

In models with this bug, you have to decrement the third character of the security code by one. If your security code was 1111, you would enter your security code as 1101. If your security code was 9999, you would enter 9989.

i hope this works for you.

Nov 26, 2008 | Kenwood Car Audio & Video

2 Answers

When i hook up my ipod to my kenwood kdc mp728 i cant figure out how to play it through the radio


it should be in aux try to press source buton and see if that is an option if not an alternative is to hook it up on the back of the cd player in the audio in or aux or aux 2 using a wire adapter from walmart in the car sterio section

Sep 14, 2008 | Kenwood Car Audio & Video

1 Answer

Need wiring diagram for kenwood cd/reciever kdc-mp728


if you get yourself a wiring harnest you wont need the diagram

Aug 22, 2008 | Kenwood Car Audio & Video

1 Answer

Bought a second hand car with a kenwood kdc-w7037 system, but do not have the security code in order to operate it - can you assist me? Karen


Pull the head unit and get the serial number.
Call Kenwood customer service, you may have to enter a code or press the buttons in a certain order,
if not. You might have to send it in, if the code is hidden in the PROM. If they ask for a receipt... Tell them it was a gift : )
Regards, Paul

Jun 12, 2008 | Car Audio & Video

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