Found this...

[sas11977]

... while removing PO aftermarket radio. Google has not helped and this is the first day I finally get to start working on my "new" Volvo since I bought it. Any help appreciated. I've taken lots of pictures and will sit down amd post one day soon. Lots of work ahead, anything rubber has to be replaced. Turbo hose main culprit of leak and brakes will be bleed and new fluid asap bc that's the only message on. To be continued...