Parking sensors, missing switch?

[carolef1984]

Hi, I purchased an ex police Astra j sports tourer with parking sensors but, no switch. The noise is really annoying and without the switch, i can only deactivate it by going through the menu, and it reactivates itself anyway. It also prevents me from upgrading my stereo to an android unit as I won't be able to deactivate them at all then, I suspect.
I've seen I can purchase the switch on eBay, however I'm not sure if there is any extra wires I'd need to connect the switch to the car, I presume there are?
Does anyone know if it's possible to add the switch easily, or even possible at all. I have no idea where I'd even find the module to see if there is a switch cable there, or what it would look like?
Thanks in advance for any help offered.

[Jpbroad1970]

If you take the radio control panel off you will see if the wiring is there. I believe it's a grey plug.

Buy one plug it in and see.

[carolef1984]

Thank you, that, at least, gives me an idea of what I'm looking for, connector wise ?