The parts:

An old radio from the 60ies (Akkord Kessy Lux L),

A new loudspeaker driver, a small EQ board and a few electronics,

Raumfeld audio streaming .

The history of M's Radio:

Original vs new electronics.

Empty box.

Start building up the new inside: New high end driver (Fountek FR88EX) in a vented enclosure, amplifier, EQ board, Raumfeld renderer (taken from a Connector2) and voltage distribution.

Finished inside, everything fits.