What Scosche harness do I need to install an aftermarket deck in my 03 GMC Sierra?

[Christopher]

I have an 03 GMC sierra. I want to install an aftermarket pioneer double din deck. I have the standard Bose sound system. My question is what scosche harness do I need? Do I need to buy another harness to install the deck in my truck? Please help!

 

[Lance]

You need a class 2 DATA BUS TRANSFER FOR FACTORY AMP gmos-04

 

[mwa145]

go to an auto zone or something like that and go to there audio department then choose your truck and there you go!

 

[B R]

a wire harness that connects to the factory harness of an 03 GMC Sierra