A boombox carried on the shoulder is read as wanting to be heard and sharing your taste with the world. Dream tradition links it to youth, street life and loud self-expression.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.