Koolertron For GMC: Yukon Denali (2007 2008 2009 2010) & Acadia & Sierra (2008 2009 2010 2010) / Chevy (2007 2008 2009 2010) Silverado & Tahoe (2007 2008 2009 2010) & Suburban (2007 2008 2009 2010)& Avalanche (2007 2008 2009 2010) & Impala (2006 2007 2008 2009) & Monte Carlo (2006 2007) & Aveo 2008 & Express 2008 / Buick (2008 2009) Enclave & Lucerne/ Saturn (2007 2008 2009) Outlook & Vue (2008 20
DO NOT BUY THIS PIECE OF GARBAGE.  I have a bad buzzing in my back right speaker after it was installed by a pro.  They can't explain it other than the unit is defective.  The clock on the radio can't be set properly, the USB won't recognize any of the 6 difference devices I have plugged into it.  Now I am out the cost of the unit, the 111.00 dollar shipping charge (are you kidding me) and the cost of the professional install.  The manual is a joke.  It's incomplete, has Zero contact info for customer servi