Airbag Wheels To Fit R33 S2

[GIGOLO]

My S2 R33 came with an aftermarket steering wheel and I am looking to convert back to an air bag wheel.

I have read that the S2 R33 has a circuit board electronic thingy either in the wheel or near it to controll the airbag, can anyone confirm this? What does it look like? pics? Any other Nissans have this?

Also, will any other airbag wheels fit from other Nissans (R34, S14, 350Z V35....) or other manufactrers (Subaru WRX has a nice momo)?

Cheers

[GIGOLO]

Anyone?