“Is the gps software in this unit garmen based? I see install is included, what would be the total cost if a back-up camera was added and I want to ensure all steering wheel volume phone and radio mode switches still function with this unit.2012 Silverado”
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If you do not have a DD unit already in, plan on adding around $150 for "add-ons". My install was free, call Geek Squad fir price.
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