Another car radio/speaker question

Going to depend on the speaker sizes, and I think the Denali has a separate amp for the speakers vs just the head unit. The Bose system in my 03 Z71 had speakers were somethin like 2 ohm if I remember correctly.

You might be better off finding a wrecked Silverado with the Bose system and transferring all that over.

Will likley be a giant pain in the arse.

The speakers in your Silverado should be 6 1/2s, the front set is likely a component set (separate mid range in the door, with a tweeter in the a-pillar).

I’d just buy a decent set of 6 1/2s for the fronts and try that first.