are all the factory radios in 03+ satelite ready or just the ones that came with xm? i ask because i really dont want to swap radios but want to get rid of the satelite box i have now that just sends the signal thru the fm radio.

 

pretty sure it is only the ones with that are xm READY....you can pop it out real quick(pop dash panel off take 3 7mm screws out) and see if there is an extra plug-in in the back thats not being used, if not then you dont have it.....