2004-2016 Scion xB Mark I Shark Fin Antenna (Custom Painted: Classic Silver Metallic 1F7) For Standard Size Antenna Bases only Antenna bases that incorporate either OnStar, XM/Sirius, Cellular, or GPS antennas into their designs are significantly larger in size. Therefore, this shark fin will NOT fit if you have one of these options. Custom painted to match your color and color code. Color Code is listed on the product title above. Easy Installation Antenna Type: Mark I