Beat-Sonic FDA81-D4S Crystal Black Silica Pearl Functional Shark Fin Antenna Manufactured for 2007-2013 Subaru Impreza, WRX, Forester, XV Crosstrek, BRZ (Canada Model only) 3M Double-sided tape used to easily secure shark fin antenna Installation requires no modification and easily reversible Compatible for AM/FM radio and HD radio Included in package: 1 pre-painted and color matched Shark Fin antenna base with helical antenna, 1 M screw set for attachment of antenna to base, 1 alcohol wipe