Does anyone have any manuals or service manuals for the radiomobile R-100 or CR-2000 as fitted to the LS?

By that time it seems radiomobile had gone to importing radios from multiple different countries so the same radio is probably sold as some other brands too.

The AM section in the CR-2000 that I have might need a bit of work and or an alignment. Someone has been into it before and stripped half the JIS screws. I have added an auto switching bluetooth module. I've got the CR-2000 schematic as most of the manual can be seen in this eBay listing. https://www.ebay.com.au/itm/315801327830?mkcid=16&mkevt=1&mkrid=705-154756-20017-0&ssspo=HLJDjek3RMW&sssrc=2047675&ssuid=&widget_ver=artemis&media=COPY

On the R-100, there's a green wire and yellow wire which appears to be for illumination but doesn't seem to work. Before I do further investigation, maybe someone can confirm the purpose of those two wires. They were poorly plugged together when I got the radio.

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1986 Mayfair (998 auto), 1974 S, 1974 Van, 1972 PMG Van

Too many minis

Could the Green Wire and Yellow Wire be for the Power antenna and dimmer light?

That would be it. It should then still work as it was (dimmer wire connected to antenna power) so I'll have to investigate.

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1986 Mayfair (998 auto), 1974 S, 1974 Van, 1972 PMG Van

Too many minis

Not the exact model of radio you mentioned but this may be of help. The page gtogreen1969 posted came from this brochure.

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ex-NSW Police 1970 MK II Cooper S
VMCI #43

I have now worked out that the CR-2000 is a rebranded Roadstar RS-1M. I've actually been testing it using Roadstar speakers. The service manual is available here: https://www.kevinchant.com/roadstar.html

The R-100 remains unidentified and I suspect it's a different manufacturer.

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1986 Mayfair (998 auto), 1974 S, 1974 Van, 1972 PMG Van

Too many minis