Designed to hold an XM or GPS antenna magnetically or via screw down attachment, the RAM-344U plate will attach between any RAM base with the AMPS hole pattern and most standard XM units and RAM GPS cradles. Mount your satellite radio receiver or GPS in a RAM cradle and antenna all on a single platform for both ease of installation and use. Whether you've run out of mounting space or simply have few good mounting surfaces, the RAM-344U antenna adapter plate opens up many possibilities.