[2004sierra]

does anyone know where i can get a pretty nice box for one 12 for my ext cab 2004 sierra? ive been looking around and everyone wants alot of money, im just trying too get a little bit more sound outta my truck, i have onstar and xm and all that will it effect it, do i have to get some kind of appapter for it???

 

[skidiver]

Try Subthump.com :rocking:

 

[Z71offroader]

i had a sound off audio box in my 03 ext cab with a 12" JL w3 and worked well. heres the site www.soundoffaudio.com if you were closer to me i could sell it to you.