Anybody know what a gm uplevel radio is. I have a scan tool it is showing options for base and uplevel?? radio

Thanks.

 

There is a factory Bose system that came with a Bose radio and Bose amp. The head unit looks the same as regular except it says Bose in the bottom right hand corner.

 

2005 Factory radio info is attached. Also not seeing any Bose system in 2005 Blazer wiring schematics. 2004 Bravada has a Navigation Radio option. As I understand it, the Bose system was an option for 2004-2005 TRAILBLAZER (not Blazer). Not sure about other years. I am quite familiar with the 6-CD in-dash changer Bose system, as my 2004 Avalanche has one.

Your up-level should be the RPO code UC6 in-dash 6 disk CD changer (non-Bose). You can look on the sticker in the glove box to see what you have.

Hope this helps.