Hi everyone,
I'm trying to install an OEM BMW rear soundboard set for my E30 Convertible, but unfortunately I don't have the installation instructions.
I'm mainly trying to figure out how the soundboards are secured.
The attached photo shows a front mounting screw next to the pull handle, but my soundboards don't seem to have anything there for the screw to attach to.
Were these soundboards originally supplied with an additional mounting bracket or support that bolts to the panel? If so, could someone post a photo of it or explain how it is mounted?
I've also attached a photo of the back side of the soundboards.
If anyone has the original BMW installation manual or detailed photos of the mounting hardware, I'd really appreciate your help.

Thanks in advance!
I'm trying to install an OEM BMW rear soundboard set for my E30 Convertible, but unfortunately I don't have the installation instructions.
I'm mainly trying to figure out how the soundboards are secured.
The attached photo shows a front mounting screw next to the pull handle, but my soundboards don't seem to have anything there for the screw to attach to.
Were these soundboards originally supplied with an additional mounting bracket or support that bolts to the panel? If so, could someone post a photo of it or explain how it is mounted?
I've also attached a photo of the back side of the soundboards.
If anyone has the original BMW installation manual or detailed photos of the mounting hardware, I'd really appreciate your help.
Thanks in advance!

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