Did your car steering wheel have the radio buttons on the Left, and you added the Cruise Control buttons on the Right?
From your photos it appears that your clock spring was not populated for radio and CC. Maybe a US version of the CS from an SE would provide the moving side and you would need to get a connector and terminals to wire up the stationary side?
pulled the covers off and it appears that the 2012 USA version ClockSpring (CS) has 10 channels--on the stationary side 4 are dedicated to the SRS/airbag with a separate yellow connector and yellow wires. The remaining 6 go thru a white connector, but only 4 of those were populated:
pin 1, blue wire, this is the signal return (-) for the left thumb radio and phone buttons, designated REM-.
pin 2, no wire populated, but the CS pin connects to the cruise control switch connector on the right thumb.
pin 3, same as pin 2.
pin 4, gray wire, this is the button-Illumination power supply for the LEDs, designated Ill+
pin 5, green wire, this is the signal (+) for the left thumb radio and phone buttons, designated REM+
pin 6, white wire, is +12V all the time, routed to the Horn button.
On the moving side (steering wheel) of the CS, there are two 5-pin connectors, one carries the 4 SRS wires plus the Horn, the other has one wire for Illumination, a pair for the Radio/Phone, and a pair for the Cruise Control.