2010-2017 Cadillac SRX Mark II Shark Fin Antenna (Custom Painted: Gold Mist Metallic 316N/51/GAO/WA316N) This sharkfin also accommodates "Larger Sized Antenna Bases that incorporate OnStar, XM/Sirius, Cellular, or GPS antennas. Custom painted to match your color and color code. Color Code is listed on the product title above. Easy Installation Antenna Type: Mark II