Question about Kenwood KDC-5021 CD Player

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It doesn't do anything, no display, nothing after I reset the radio

My radio (Kenwood KDC 5021) didn't work so I thought: reset. But now he doesn't do anything i can't find it in the discription what to do know. Please can you help me?(sorry for my English but, I am dutch :))

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  • veldmuis8 Apr 21, 2009

    The discription says I need a mask key?



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I bought a car with a KDC BT945U Audio Radio, but no manual. All it does is blink "Protect". It has a remote but pressing buttons on it doesn't change anything. Where can I get an...

The manul for the KDC-BT945U is available from Kenwood: . Click on the Manuals tab. The direct link to the English version of the manual is .

When Protect is blinking in the display, there is a short circuit in the speaker wire. Make sure that it is correctly installed and that the wire is not touching the chassis. Insulate the wire if needed. Then press the Reset button which is on the front of the main part of the unit (rotate the faceplate down) on the left side. (It's about where the source button is on the faceplate.) See page 70 of the manual for the wiring diagram and page 4 for a picture of the Reset button.

If the Protect message continues, you need to take it in to a service center.

I hope this helps.

Cindy Wells

Oct 08, 2011 | Kenwood Kdc-bt945u

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My car radio keeps cutting out and displaying "CALL"

radio has cell mute on harness if it touches ground metal it shuts out radio to hear cell..make sure its insulated and it should fix it

Jun 07, 2010 | Kenwood KDC-5021 CD Player

2 Answers

How to reset kenwood kcd 5021 car radio

Waiting means you locked it up by using the wrong code too many times if there is a number after waiting 2= 5 minutes
3=1 hour
4=24 hour
That is how long you have to wait until you can try again.

Mar 21, 2010 | Kenwood KDC-5021 CD Player

1 Answer

I have the code put it in still not working dont no how to put it in


A. Input Security Code:
  1. Enter Standby: Press the [SRC] button. Select the "ALL OFF" display.
  2. Enter Menu Mode: Press the [MENU] button for at least 1 second. When "MENU" is displayed, "Security"/"SECURITY" is displayed.
  3. Enter Security Code mode: Press the [|<<] or [>>|] button for at least 1 second. When "ENTER" is displayed, "CODE" is displayed.
  4. Select the digits to enter: Press Press the [|<<] or [>>|] button.
  5. Select the Security Code numbers: Press the [FM] or [AM] button.
  6. Repeat steps 4 and 5, and complete the Security Code.
  7. Confirm the Security Code: Press [>>|] button for at least 3 seconds. When "RE-ENTER" is displayed, "CODE" is displayed.
  8. Do the step 4 through 7 step operation, and reenter the security code. "Approved is displayed and the Security Function activates. However, if you enter a code different from your security code you have to start over from Step 4.
B. After Pressing the Reset button or when removed from power source.
  1. Turn the power ON.
  2. Do the step 4 through 7 operation, and reenter the security code. "APPROVED" is displayed.
C. If an incorrect code is input, "WAITING" is displayed and the input prohibited time shown below is generated. After the input prohibited times lapses, "CODE" is displayed, and input can be done.

1 Time = 0 minutes
2 Times = 5 minutes
3 Times = 1 hour
4 Times = 24 hours

Here's a link to the manual:

Apr 23, 2009 | Kenwood KDC-5021 CD Player

1 Answer

Traffic Updates

Below is a link to the manual. Information concerning traffic updates is on page 16:

Aug 04, 2008 | Kenwood KDC-5021 CD Player

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Display on a Kenwood KDC-MP532U radio

not grounded well at all ground it man form main bolt on back to car chisis bet wont happen again

Mar 14, 2008 | Kenwood KDC-MP235 CD Player

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take a pen and press the reset button's a tiny little button next to the button that takes off the faceplate...

Jan 18, 2008 | Kenwood KDC-MP235 CD Player

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try display button and volume button to get the point to enter the number. Try 1234 or 5021

Oct 20, 2007 | Kenwood KDC-MP4028 CD Player

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