Security code for kenwood ddx4038

call kenwood tech support

pull front plate off,there is a factory reset hole

Here is some good info from another site (as linked below):http://www.tech-faq.com/how-to-reset-a-kenwood-security-code.html


If these methods don't work you would have to send the stereo back to Kenwood to be reset.

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 the "Auto" button and "Track up" 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.

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.

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.
Finding the Kenwood Security Code

There are backdoor codes for each Kenwood car stereo, based upon the model and the serial numbers.

These backdoor codes are closely held secrets. Outfits like Car Audio Accessories UK will sell you the code for your radio for £20.
Sending your RadioBack to Kenwood

If all else fails, you can send your stereo back to Kenwood to have the security code reset.

http://techbybucky.blogspot.com/2008/01/how-to-reset-security-code-on-kenwood.html hope this helps

what sort of car?

Need code can't here music!

Try code KCAR entered from the remote. 3 entry methods are detailed below.

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.

http://techbybucky.blogspot.com/2008/01/how-to-reset-security-code-on-kenwood.html........ you may need to buy a remote for 9.50 you can find that here http://store.kenwoodusa.com/detail/KWD%20A70-2069-15
this will reset the security code on your kenwood kdc-3028

The only way to reset the security code is to send the deck back to Kenwood along with proof of ownership. Sorry there's no other way.