i have a 2003 trailblazer ltz with the 6 disc stereo that has the bose sound system, and as i learned the hard way, when buying a different oem radio that it needs that system to work, and ive also learned of the different part numbers they have to determine whether they are compatible. im wanting to switch from the 6 disc to the one with a cassette slot, since im wanting to use an adapter to listen to music from my phone, but given my prior lack of knowledge when i bought one, im wanting to make sure the next one i buy will be a match so im not wasting money on another one. im wanting to confirm part number,or to find one that i know will be usable in my car

current radio in the car


stereo i bought that doesnt work