Ok so I finally have cruise control on my 2012 base with M/T!! Stick with me, the process is complicated. Here we go.
1) Change your steering wheel to another Soul wheel that has the controls for cruise control(mine is from a 2011).
2) Drive car and enjoy cruise control!!! NO BULLS**T!!! It works on mine. The only thing is, the lights don't work on the dash to tell you it's engauged! Just make sure your above 25 mph and hit "ON" then "set". Everything works as it should. Hitting the brake, clutch, or pulling it out of gear all disengauge it.
I changed steering wheels 4 weeks ago just for the radio functions on the wheel and never realized it untill the other day I was bored driving, and started to play with the buttons.
So DON'T go waste money on the rosta kit(i'm sure it's good, but not needed).
***Must be Electronic Throttle. Not cable driven***