What is this willingness you have to hold on to the past, to keep it broken and useless about you? That cassette tape no longer plays the music from your youth. At best, the boombox makes a whirring, screeching sound. Is that how you want to remember your favorite songs?
I think it would be better to let go of these artifacts. Recycle the plastic. Throw away the moving parts. Remember the songs in your mind--the nostalgia, the perfect tunes remain in you memory. They aren't in this plastic box anymore.