DD install in a 2002 Denali,what bypass???

[Denalilover]

What's the the best wire harness for this installation,,
And do I have to modify the install kit and will this work with my factory
amp and speakers,I have Bose setup with onstar,,any help would be appreciated...

 

[danniboi]

99-02's are din and a half so a double din will not fit directly without some modification to your dash bezel. What do you mean by harness bypass? Any aftermarket stereo will work with your current amp and speakers as long as it is wired correctly and you do the blue amp turn on wire to the pink wire at the amp located behind the glove box.

 

[Denalilover]

I mean wire harness,not by pass ,my bad.
I have read that the metra gmos-04 is the one to get..

 

[Denalilover]

I read the Metra gmos-04 wire harness is for 2003-2006,what other one is good for me