Nothing really happening yet, other than acquisition and ordering of parts.
Thanks to everyone who chimed in on my requests for help regarding fitting an old Alpine head unit into an old Volvo.
See - https://ozvolvo.org/discussion/13842/advice-help-wanted-volvo-p80-v70-to-old-alpine-head-unit-loom-adaptor#latest
Here's the Alpine MD headunit I'm going to use, which I'd bought new in 2001.