On of the front door speakers on my 9-3 is distorted at higher levels, which makes me suspect that it has gone South. I already had the other side replaced with the same fault just a few months ago, but the cost from the garage was ridiculous. So now I am thinking of replacing the speaker myself. But I just don't seem to be able to track down any details on what size speaker was used by SAAB, including information on depth etc. Does anyone have any information on suitable speakers for the doors?