Panasonic RX-DT75 CD Radio Boombox Confirmed Cobra Top Junk For Parts. Panasonic Cobra Top RX-DT75. Music in the CD tray could be played. Sound comes out of both speakers. The TAPE and CD are not open and do not work, so they are considered junk. The antenna is also missing. All buttons are responsive. It has an AUX terminal, so you can connect it to your smartphone using a cable or Bluetooth receiver. Carefully pack it to prevent it from breaking. International Buyers – Please Note. Thank you for your understanding.