I don't think what you are asking for is possible... Sirius is built into the factory head unit. It is possible to re-use the Sirius antenna in some cases, and it may also be possible to re-use the microphone. You can get an adapter to connect an aftermarket head unit to the steering wheel controls, so it will function the same way as factory, depending on the head unit (e.g. Voice control by pushing the talk button, volume, track select etc). The voice recognition will depend on your head unit.
You can check out my build thread in this forum to see all the parts needed for a factory rip out and replacement while maintaining the integrated controls. I have yet to install it... My rubicon is being delivered Friday (fingers crossed).