Pyle PLMRKT32WT Mechless Marine Stereo w/ 5.25" Speaker pair Remote Control The port that runs along

The port that runs along the top of the tube is square along the top rather than round

Cut-Out Dimensions 5inch

Spectrum Analyzer

Subsonic filter: OFF-50Hz

Built-in 8GB Memory & FM Radio

Pyle PLMRKT32WT Mechless Marine Stereo w/ 5.25" Speaker pair Remote Control The port that runs alongFeatures: In Dash Console Headunit System USB Flash & SD Memory Card Readers MP3 Digital Audio File Compatibility AM FM Radio 30 Station Memory Presets Aux (3. 5mm) Input Connector Jack Ability to Connect Additional External Devices (Smartphones, MP3 Players, Tablets) Rear RCA (L R) Output Connector Jacks LCD Digital Display Panel Bass, Treble, Balance, Fader Adjustment EQ Audio Configuration Random Repeat Audio File Functions Includes Wireless Remote