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Very satisfying to know I helped someone! Thank you for your kind words.November 2014
Thank you for detailing my exact same problem with the water leak through the OnStar antenna. Called my dealer they told me to plan on a 4 hour fix! So I Googled my issue and found your answer. Printed it out and took it with me. I said this is the fix and it shouldn't be 4 hours. So thanks to you they received instructions on how to fix it at a cost of $20.00. Much appreciated.November 2014