Just saw your post. I am also in socal. I used Sterling in NB after they agreed to match Crevier's quote of part + 1 hour of labor or 210. Sterling's original quote was 400+ but they agreed to match Crevier (Sterling already had my car for an mp3 retofit or I would have gone to Crevier). Good luck.
Jet Black on Black - Steptronic, Premium, Cold Weather, & PDC.
2004 Yukon XL Denali