How much does this cost to the nearest dollar?

Road Top Wireless Carplay Retrofit Kit Decoder for Audi A6 Year with MMI 3G System, fit for Audi A7C Year with MIB2, Support Android Auto, Mirrorlink, Reverse Camera
Pre-shopping Notes Before you purchase, please check our website picture clearly, if your A6 car is RMC system, this item link doesn't fit for your car. Go to ‘Settings’,Scroll down to ‘Version Information’,Look for first letters and numbers of software version RMC, If you would like to buy our unit for your RMC car, get correct link from us to purchase. Wireless Carplay Android Auto For Audi Upgrade the interior of your car, with a system which is completely hidden away behind the center unit, allowing your car to have wireless carplay, android auto

Price is $300.00
Price: $299.99