WOWKits provide everything needed for a complete sound installation.
This WOWKit includes:
Each WOWKit has been engineered for a perfect fit in your locomotive. Even if you are new to DCC or DCC installations, you can achieve Easy, Clean, Professional results using WOWKits. WOWKits make sound installation as simple and all-inclusive as possible. A list of compatible locomotives for this WOWKit can be found in the "Compatibility" tab.
The TCS website features step-by-step installation pictures and instructions for each WOWKit. Visit the installation pages and search by locomotive, or follow the link in the "Compatibility" tab!
You can also find out more information about each part in the kit by clicking on the picture of that part.
Athearn F-Units (F2, F3, F7, and F9) are available with sound pre-installed/sound-ready with a circle milled into the top of the rear of the frame for a speaker.
If you have the sound-ready frame (visible here in the Athearn EMD F9A)
use the WDK-ATH-9 WOWKit.
If you have the non-sound ready version (shown here in the Athearn EMD F2A)
use the WDK-ATH-3 WOWKit.