为了尽量减少音频“嗡嗡声”的可能性，可以选择在对讲机/音频面板/收音机的接地点和SkyView显示柜之间连接一条16 AWG线。要将电线连接到SkyView显示器的后部，可以将一个4-40 x 3/16”长的螺钉拧到SkyView显示器背面USB端口上方的螺纹座上。

To minimize the possibility of audio “humming”, a 16 AWG wire may optionally be connected between the ground point for the intercom/audio panel/radio(s) and SkyView display case(s). To attach the wire to the rear of the SkyView display, a 4-40 x 3/16” long screw may be screwed into the threaded boss above the USB ports on the back of the SkyView display.