Re: Rockford Fosgate Upgrade for H2 SUT or other?
If you do a search, there are a few posts on here about that upgrade. If I remember right, most said not worth it. I just did about $2K to my 06. The harnesses were the worst part, the one for the dinger warning bells, steering controls, and the onstar. I'm very happy with the decision to go that route versus the upgrade.
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