Newest radio type for 09 Quad Cab SLT?

[Lon]

I have the satellite radio but I am wondering what the newest radio type I could put in that is a drop in replacement?

Any help would be greatly appreciated.

 

[Etroze86]

Depends on if you have a high speed bus or low speed bus.

 

[Lon]

How do I know if its high speed or not? Its not an alpine system but it does have uconnect and satellite radio.

 

[Etroze86]

If I remember correctly its a corresponding model number to what is high speed and low speed. Like I know a RBZ touch screen is high speed modle.