Ahh ok, you got the SV with premium package, which adds navigation without Bose.
The good news is that since your system would be the base audio with navigation, the steering wheel switches go to the navigation headunit directly, and not to the Bluetooth telephone adapter unit so it's much more simplified to troubleshoot.
As long as you have a multimeter, you can
You can find a link to the Factory Service Manual under the "Technical Info" section of the pinned FAQ thread.
the-official-rogue-faq-information-answ ... 07234.html
Just select the year (2011) and click on the AV section, read through the table of contents on the first few pages to familiarize yourself with how it's laid out, focusing on the setup for "base audio with navigation" which is what you have. Base audio just means without Bose.
With a multimeter, you can unplug the correct connector at the back of the audio headunit that has the A, B and ground signals and measure the resistor values between A <-> ground and again between B <-> ground. When no buttons are pressed, it should be "open" but when you press any button, the appropriate resistance (outlined in the service manual) should show up.
Take care when probing the pins, you do not want to "spread" the terminals, I would recommend using a paper clip and probing it from the back (where the wire goes in to the connector) rather than the open terminal face of the connector. If you spread the terminal, you will no longer have a reliable connection.