New 2020 Clubman adding active subwoofer
 

Howdy all, I just received my new 2020 Cooper S Clubman and would like to add a slim 10" active subwoofer.
Can anyone recommend where I could find out how to connect this to my OEM?
I am looking for some info on how to get behind the dash and what plugs/ports I can expect to connect to. Most of the active subwoofers state easy connect to OEM stereos.

Thanks in advance for any info.
Regards,
Rick