Milennia MPK16 PackageMIL-PRV16 - Portable Media Receiver4 x 40WFits a Standard tachometer openingSolid aluminum chassisAux-inPortable media readyUSBASTM 117 Salt fogIP-66Installation Depth 2-⅜" not including wiresInstallation cut out 3-⅛"Outside dimensions 4-⅛"MIL-SPK652B - 6-½" Round SpeakersBlack150 WattAll molded waterprroof20-MM tweeterUV protectedCutout size 5-¼" Depth 2-½" Wired Remote Capable NONEXM - Sirius Ready NONE