Speaker whistle

[neilboy]

Hi Guys,
Does anyone know how to remove the little speaker that's fitted in the rear door by the door opener?
Reason is I get a high pitched whistle from just one of them after about ten minutres of the radio/cd being on. The whistle is linked to engine revs, but if you power off the radio and back on it goes away for a while and then comes back again. I am confused.

Ta very much.

[RSVI]

Snap! !

Since fitting the Milltek i never have the radio on though

[marmite]

Mine does this too
I remember them having this issue on a S3 and they couldn't cure
it
Mine dose this but on CD too(phat noise)