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I need the serial number ro my car's kenwood dnx7140

Posted by Tammy... on

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Sigitas Sirius

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Actually serial number you can find on gadget body or on gadget papers.

Posted on Jun 03, 2019

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SOURCE: No serial number for Ique

Garmin can activate the unit from either the serial number or the unit ID. Doesn't sound like a big problem, just call them to do it that way. I did that on mine that I got off of eBay a year and a half ago without a sticker.

Posted on Oct 25, 2008


  • 32281 Answers

SOURCE: Kenwood car radio serial number 90604537 find code

When you disconnect your battery and then reconnect itagain, it disables the radio. This is an anti-theft protection for your carradio.
The enable your radio the activation code is in your vehicle owner's manual. Ifyou do not have this code you need to go to your vehicle's service centre andget them to enter this code for you.

Posted on Feb 09, 2012

Temisan Soremi

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SOURCE: I need the security code of my car radio I removed the battery now it need a code which I don't know Kenwood PDX500M serial number 31104056 please.

For this fix you need to reconnect your battery.
1) Turn on the car.
2) The faceplate rotates out and the CODE - - - - prompt appears.
3) Press >>' and Auto keys simultaneously on the faceplate and hold for 4 seconds. (If the faceplate rotates back into the console push on the upper left top edge of the faceplate and it will flip back around. Press the Eject button and then try it again.)
4) The screen will still say CODE, but the - - - - will disappear! When this happens press the 5 key on the remote twice and it enters a K on the display on the faceplate. Hit the >>' key on the faceplate.
5) Press the 2 key on the remote three times and it enters a C on the display on the faceplate. Hit the >>' key on the faceplate.
6) Press the 2 key on the remote once and it enters an A on the display on the faceplate. Hit the >>' key on the faceplate.
7) Press the 7 key on the remote twice and it enters an R on the display on the faceplate. Hit the >>' key on the faceplate.
8) The radio goes into All Off mode and you are set! Hit the SRC button on the faceplate to select CD, Radio, etc

Posted on Dec 19, 2012

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Related Questions:


I have kenwood dnx 7140 dvd player with navigation, radio,tel etc in toyota sienna. i bought this car yesterday, but they have no code. i need security code for this syste.

In most cases all you need to do is call your local Toyota dealership. You will need to provide them with the Vin number which can be seen through the window on the driver side of your vehicle. They may need you to drive to them so that they may set it up for you.

I for got my password for my kenwood double din dnx7140 and i dont have a manuel for it wife got it for me used

You can download the manual at

My bluetooth was working but now it says disconnected

reconnecting will get it back in the connection mode

I just installed a kenwood dnx7140. Everything is

Have you checked to see if the sub amp is turning on. Check to make sure you have at least 12 volts on your power as well as your remote turn on (Blue/White on radio harness).
If everything is hooked up correctly, it is possible that the preout is turned off. Some headunits have selectable preouts. If so you should be able to turn the sub on and off in the menu.
Hope this helps

I own the Kenwood DNX7140 navigation system. Periodically the screen says "Software Update Complete" and teh system locks up. I have never updated teh software though. What is wrong with it?

You need to update your software. Garmin does this through a downloaded file you burn to a CD. You then do a firmware update to the Kenwood from the CD. Instuctions are on-line at:

Trying to update a kenwood dnx 7140 but it dosent give me the update option

had this problem myself today. did you stick the cd in with a copy of the update files? If you did and that still didnt let you choose upgrade then its probably becuase you have used windows explorer to burn the cd. you need to use nero or roxio or any other after market software. Microsoft has some sort of "copyright protection on their burning software. No idea why they would need to do that besides to annoy the whole universe!

Has no sound

go through your menus, you have muted your voice.

How can I update the maps on my dnx7140?

go tot he Keenwood web site and select support, if there are maps they will be there, there will be a charge, in most cases about $100 US
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