SMB Male to SMB Female extention cable, 30ft 9M GPS Receiver fit  XM or Sirius satellite radio antenna extension cable Extend your XM or SIRIUS Satellite Radio antenna an additional 30ftSBST-30 Can be used in your car or vehicle to extend you XM headunit add-on antenna Contact with supplier:Uniqueoffer for other service:customized length or adapter.Thank you! Perfect for bringing your radio just that extra bit further