right passenger door speaker wont work until i put the volume up or it hits bass

i have recently noticed that while i turn on my car my right passenger speaker wont work until later when i put the volume up or it hits a high note, almost as if it had to be back in place or so. is it because i need to sold the cables back again? or is it the speaker thats malfunctioning?
any help or thoughts will be greatly appreciated

W r o n g s e c t i o n

Lol. Yeah you might have a wire loose, or Speaker wire not tight enuff on the speaker connection.