In the Past I have used the Pocket GPS speeding database, it is for many makes of sat navs.
I did notice a post for Volvo on the forums, but not sure if they got it working, it is installed as a poi on most systems, it will be something I will try to install when I get my XC60 in a month or two.
https://www.pocketgpsworld.com
They have been around for years, it is now subs, but you can try it first, database is updated weekly if not less sometimes.
I also use it on my iPhone, if need, and that should give you a warning if you are listening to music etc.