Gyro switch connection IBU2U

[Juggmeister]

Please bear with me, I have done a search but I have been unable to find an answer.
I have an old headlock gyro off a TRex heli and I would like to experiment with turret stabilisation. I would like advice on where to attach the switch connection to the IBU?
Here's the gyro in question, it's the lead with the single white wire that ends in a servo type connector.
[url=https://flic.kr/p/2ma5PrS][img]htt ... .jpg[/img]GYRO by Steve Jugg, on Flickr[/url]

I have done the digital servo 360 mod for turret rotation and if I can get this to work I will fit a 360 slip ring to the turret.
Thanks