My old DIN1 size CD player died. That one had a nice aux input for an ipod that I often used. Bought a new stereo from Sony. Fit right in but was missing cd player. My mistake, there. Instead it had Blue Tooth. The stereo turned on (without sound) when I reconnected my batteries this Spring. I tried to turn it off but could not figure out how. Left it on for over a month until I could find the manual. Seems you have to push some multi-function button and hold it for five seconds to actually shut the damn thing off. The complexity of the controls is ridiculous! Remember when an auto radio had two knobs? One for on/off/volume. One for tuning. With blue tooth you get phone pairing and hands free phone calls. Who would ever want that on a boat? So the radio is in the cabin and you are sailing peacefully in the cockpit listening to some music and the telemarketer calls. All stop! You must leave the helm and go to the cabin and try to cancel the now ringing stereo phone over four speakers. Useless! How about the Equalizer features? What normal adult would ever use that? How about satellite radio? Trying to use this stereo is a multiple choice test. Push any button and a list of possible functions comes on the screen. Scroll through those and make a selection. Then comes the sub-menu selections. I realized that I did not use the damn thing all last season until my Granddaughter got it going with her awful music. Where can I get a simple DIN1 size CD player maybe with an aux input and no bluetooth, no equalizer, no hands free phone, no satellite radio, few or no radio buttons? I am old and simply want to occasionally listen to music over my four stereo speakers. Anyone have a suggestion?