How much does this cost to the nearest dollar?

Antenna Adapter Compatible with Honda Acura MDX Civic Accord CRV City Element, Mazda 2 3 6 CX-5, 2005 and Up
Compatible with Honda Acura MDX Compatible with Accord Compatible with Accord Crosstour Compatible with Civic Compatible with CRV Compatible with Element EX/LX/SE Compatible with Fit Compatible with Odyssey Compatible with Pilot EX/LX Compatible with Ridgeline Compatible with Mazda 2 Compatible with Mazda 3 Compatible with Mazda 6 Compatible with Mazda CX-5 2013 Compatible with Mazda CX-7 Compatible with Mazda CX-9 Compatible with Suzuki Kaisersi NOTE The blue wire must be connected to a switched +12v lead in order to work properly. This blue wire is not for the amp turn on. Factory antenna adapter To

Price is $7.00
Price: $6.88