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Kenwood KNA-SPM100 OBD-II Port Adapter

Easy connection of your vehicle's speed-sense wire to Kenwood car stereos with wireless CarPlay

Item # 113SPM100

Item # 113SPM100

In stock

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About the Kenwood KNA-SPM100 OBD-II Port Adapter

Sure, wireless CarPlay is a great resource, but it can require some serious time and effort tying into your vehicle's speed-sense wire. Kenwood's KNA-SPM100 adapter connects to your speed-sense wire through your vehicle's OBD-II port, giving you the convenience of wireless CarPlay and more accurate GPS locations for your navigation apps. This adapter is not needed if your wiring harness or OEM adapter includes a speed pulse connection. The adapter works with select Kenwood radios with wireless Apple CarPlay.

Product highlights:

  • provides the vehicle speed pulse connection required by wireless Apple CarPlay
  • works with select Kenwood radios with wireless CarPlay
  • not needed if your wiring harness includes a speed pulse connection
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # KNA-SPM100

What's in the box:

  • OBD-II speed pulse generator module
  • 4' OBD-II harness
  • 17" Power/ground harness (1A fuse)
  • 17" Speed pulse wire

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Crutchfield response

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More details on the Kenwood KNA-SPM100 OBD-II Port Adapter

Mark G.

Product Research


OBD-II Speed Pulse Generator: The Kenwood OBD-II Speed Pulse Generator (KNA-SPM100) is designed specifically for installing Kenwood receivers with Wireless Apple CarPlay in 2008-up vehicles, since Wireless Apple CarPlay now requires a vehicle speed pulse connection. The KNA-SPM100 converts digital speed data of your vehicle to pulse waveform for communication with a compatible Kenwood receiver. Once installed, the KNA-SPM100 helps to provide a more accurate GPS location when using Wireless CarPlay navigation apps; such as Apple Maps, Google Maps, or Waze.


  • Wireless Apple CarPlay will not work without a vehicle speed pulse connection.
  • If you are using a radio replacement interface with a vehicle speed pulse wire, you will not need the KNA-SPM100. Instead of using the KNA-SPM100, you'll hardwire the Kenwood receiver's speed pulse wire to the speed pulse wire of the radio replacement interface module.
  • Alternatively, you can also hardwire the Kenwood receiver's speed pulse wire to your vehicle's speed pulse wire (this method is much more time consuming and requires more installation experience).

Compatibility: The OBD-II Speed Pulse Generator (KNA-SPM100) is compatible with select 2008-up vehicles and Kenwood receivers that offer Wireless CarPlay. Compatible Kenwood receivers include the DNX996XR, DNR876S, DDX9906XR, DDX8906S, DDX8706S, DMX906S, and DMX9706S. It is pre-programmed to automatically work with the compatible Kenwood receiver and vehicle once its installed properly.


  • Not all vehicles 2008 to present will support the Kenwood OBD-II Speed Pulse Generator (KNA-SPM100)
  • If a diagnostic tool is already being used on the vehicle's OBD-II port, the KNA-SPM100 cannot be added in parallel.

Simple Installation: The KNA-SPM100 features an OBD-II connector harness and simple 3-wire installation.

  • OBD-II Connector: Plugs into your vehicle's OBD-II port.
  • Power Wire (Red): Hardwires to the +12V accessory/switched wire (red) of the Kenwood receiver's harness; a 1A fuse is pre-installed on this wire.
  • Ground Wire (Black): Hardwires to the ground wire (black) of the Kenwood receiver's harness.
  • Speed Pulse Output (Purple/White): Hardwires to the speed sense wire (pink) of the Kenwood receiver's harness.

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Customer Q&A

10 questions already asked

will this work with my factory nav radio 2008 IS350 sedan ?
[ James  Aug 18, 2020 ]
1 answer
I purchased this to help integrate my factory steering wheel controls in my '04 Porsche Cayenne. The volume and radio station search functions worked fine. But I lost my mute control which I valued greatly. In addition all other controls do not work.
[ Gregory  Aug 21, 2020 ]
Just installed Kenwood DMX906 in a 2002 Chevy Silverado 2500HD. Where do I connect the pink speed pulse input wire?
[ Andrew  Feb 17, 2020 ]
1 answer
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ Krissy  Mar 02, 2020 ]  Staff
does this unit work with avlalon 2019 and corola 2014?
[ Anas Khalfan  Dec 26, 2019 ]
1 answer
Yes it should work in both those vehicles with a compatible radio.
[ Cosmo  Jan 08, 2020 ]  Staff
can this module work on a 2003 gmc yukon? or where do i tap in for the vss wire?
[ juannneato  Oct 22, 2019 ]
1 answer
Juan, I would recommend you reach out to one of our advisors for more personalized help!
[ Calvin  Oct 30, 2019 ]  Staff
Does this unit work with a 2007 Honda Element SC? Kenwood says it will, crutchfield site says no. The 2007-2008 elements do not have a VSS wire I can access so I'm considering this part.
[ Mark  Sep 09, 2019 ]
1 answer
I do not know for certain that the port adapter will work with a Honda Element, but all OBD 2 vehicles have the same connector and the same data stream for basic vehicle functions. My 2008 Escape Hybrid also does not have a VSS wire, but by plugging the adapter into the OBD 2 port, Using a posi-tap connector to connect to the receivers switched power wire and splicing the adapters output wire to the receivers VSS input wire, the unit is able to get vehicle speed information from the OBD 2 port. It works perfectly. And the location accuracy on my phones navigation app is noticeably improved when using apple carplay.
[ WILLIAM C  Sep 14, 2019 ]
Will Apple carplay work in an older vehicle (2001 Dodge Ram without a speed-sense wire? I am considering a Kenwood DMX906S
[ Michael  Jun 30, 2019 ]
1 answer
Wireless Apple CarPlay will not work without being connected to the vehicle speed-sense wire. a 2001 ram has that wire, and can be tapped into under the hood fuse panel.
[ Calvin  Jul 08, 2019 ]  Staff

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