Yep, I fitted a stereo initially so I'd have something to listen to while I waited for the RAC at the roadside.
The head unit was under the dash ahead of the gear lever -
...a Clarion double-din unit I chose because it didn't look much like a stereo.
It was really powerful and worked fine right up until I dropped it during the final fit of accessories after paint, and I've now removed it.
I haven't bothered having it fixed or replacing it as the engine makes plenty of music. The car's also only broken down the once and that was a modern electronic ignition module that failed, so it's clear that the car, in
Christine stylee, doesn't want any modern electronics fitted to it.
At the end of this summer I might just remove the aerial and the speakers as they're redundant now.