Often, pertinent information was on a paper label or sticker which obviously is long gone from your radio.

If you really want to have this radio working, you will probably have to send it to an a qualified repair shop.

I am pretty sure someone makes a 6 volt reproduction radio that looks like an old radio for less than what a repair shop would charge to fix your old Bendix.

Most interior shops will either make their own headliner trying to use your old one as a template or order one from a shop that makes them and in both cases, they usually don't make an accurate replacement. Functional, yes, accurate no.

One of my suppliers has accurate reproductions of the headliners made.

The vinyl perforated version costs $126.00 plus shipping.

FYI, you will probably pay more for labor for a professional headliner installation.

You should have the windlace changed at the same time.
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Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90502
hiperformanceautoservice.com or oldvolvosonly.com