Hey Marcos.
Got a pic of your Cyclone with the mini Spekturm in it handy?
I pulled all the electronics out of the cyclone to try to reduce the amount of weight needed on the battery side.
I've got the GTB mounted on it's side right next to the topdeck now. I'd rather mount it flat per usual and hope that the mini fits in there without having to cut the ears off my servo and taping it down. (Don't like sticking things down in the car. Seems like it might move around. Esp. in sumemr when things get hot!)
Cheers!