I brought jvc pc-r11jw from Good Wills for $15. Tuner and AUX work fine but cassette got stuck. Is it ok to open for repair cassette? One question that I connect CD player to AUX sound good but not loud until 3/4 volume. There is a switch button below switch to phono/aux. To phono sound is loud but distortion. I am new to this forum. Thank you for your time to help me as I would like to restore this boombox. I love analog sound better than cd.