Programming new key

[Craig Mel s38p]

Hi people I have recently bought a new key off eBay it has all the exact same codes as my original key I got with car my car is a s3 8p 09 and I'm wondering if anyone else has done this and managed to program the key to the car to open / lock car and start car or even get ignition on I've read a thread on Audizine that says u can do it just Askin to see if anyone else has the new key has transponder and all that in key and is 433mhz same as my original any ideas thanks craig 

[niedzial1983]

You would need to program the key. 443mhz is just the frequancy that the transponder sends signal.. standard for most keys