I count 4 wires, so will swap the wheel over and see what happens!
You have the “right” number of wires going to the switch, but I suspect you have the Non cruise control switch, which only utilises two of the wires ie has only two contacts.
The switch for cruise control has four contacts inside.
The Mazda part number for which is GJ6E-66-490.
( Be mindful that the part number for the two contact switch is GJ6A-66-490 
)
1 Like
Ah I see! That makes sense, thanks.
What about the steering wheel wiring loom? Very interested in the process.
Breakers normally leave the wiring still attached inside of steering wheels. OP will just need to take out the old steering wheel and then install new wheel with the wiring inside it.
@Wardy5 , Good news on the wiring for the brake switch.
Now unplug the loom and see how many pins are on the switch; if its only 2, one of the third party brake switches on ebay will suffice.
Hmmm, ok. I believe that mainland European don’t have the cruise control wires in the loom if it was not ordered with cruise control ánd that the ECU is missing the software for it…
If anybody is still contemplating doing this, there is currently a CC equipped steering wheel
and four contact brake pedal switch on ebay at the moment.
eBay item number:235239655189