door speakers

[tuanle16]

i just discovered that my door speakers don't work!!! my brother was sitting in the car and noticed that all of the sound was coming from the speakers on the dash. i played with the fade on the radio and confirmed that both door speakers don't work. anyone ever encountered this before? i have had speakers "blown" before, but they usually make some sort of noise, albeit, not pleasant, but at least it signals a bad speaker. but this time, nothing and both? could it be just a loose wire? i'm asking because i don't have the keys to remove the radio to check. so before buying the keys or buying new speakers, wanted to see what my friends here thought first.