Stick with Sanwa. Always best to stick with the original manufacturers crystals, especially on 40MHz. Almost every time I see a car with interference problems it's because they have mix-and-match radio gear.
Everybody always recomends use Sanwa crystals, tho you can find cheaper recievers,,,,,,,,,,,,,,,,but there is a lot of secondhand Gemini's out there and secondhand crystals.
sanwa advice
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