I have a 2006 crossfire Limited, I think. It is black with black leather, six speed manual, and has the crossfire door trim emblems. However, the radio is not an infinity. The rear speakers have no emblem on them. There doesn’t seem to be an amp Under the passenger feet floorboard. I’m wanting to replace the radio, but I am not sure if my model has an amp or not. From what I am reading all the limited have an amp. Not sure what to look for in a radio because of this. Any help would be appreciated.