Works for Kenwood DNX691HD Navigation Receiver with Garmin
Tried the US code 131.0.0.1 for traffic on a Kenwood DNX691HD with Garmin Navigation and it works to give Total Traffic. This DNX691HD unit was designed by Kenwood and Garmin to mainly use the Garmin Smartphone Link through Bluetooth for traffic information (a $5 lifetime subscription) but the Smartphone Link worked sometimes and most of the time it did not work. Worse yet, after trying to add traffic through the code, I found that Smartphone Link would override the traffic info from the unit itself with no traffic information from Smartphone Link creating a gray traffic icon. Now that I have removed Smartphone Link from my phone apps, traffic info with the internal code has reliably worked.