[. . . ] Choose a mounting location on the instrument panel that will allow enough room behind the panel to run the wired remote cables to the existing radio. [. . . ] Choose a mounting location on the instrument panel that will allow enough room behind the panel to run the wired remote cables to the existing radio. At least 2 ½" depth is needed to mount the remote control. Important: Do not mount unit where it can be submerged or subjected to high pressure spray. Up to two additional extension cables (MWREXT) may be purchased and used to extend the reach of the remote up to 54 feet. Important: When connecting the cables, be sure to route the extension cable away from sharp objects, corners, and places where it might get pinched, as this could affect performance and cause damage to the unit. Up to two more remote controls can be added with a "Y" cable adapter (MWRYCBLS). [. . . ] Important: When connecting the cables, be sure to route the extension cable away from sharp objects, corners, and places where it might get pinched, as this could affect performance and cause damage to the unit. [. . . ]