If you purchase a radio off ebay, how do you make sure it's going to display the Jeep welcome screen instead of the Chrysler / Dodge etc.?

mine said chysler at first, but then started saing jeep. Everything slowely changed to being jeep on its own.

Thanks for the info. I ordered one last night as well as the OEM microphone.

I'm a little nervous as the unit was pulled... A lot of money for something with no warranty.