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Thanks, looks like best buy doesn't sell the harness AU1 or AU3 required for 2019 Q7.
Sorry, there was a problem. Please try again later.Yes, and yes, but as far as I understand, if you buy the system and T-harness together from best buy, the cost of the T-harness should be included in the cost of the system. Make sure you let the sales rep know you need the T-harness as well. T-harness AU1 or AU3 will work for your vehicle.
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