When I first used this with a car tape player, the turntable kept ejecting the adapter. The solution is to open the adapter (it just needs to be unscrewed) and take out the gear with a rubber O-ring. There are YouTube videos explaining this, just search for something like "How to fix a cassette adapter that keeps ejecting". After that everything worked fine. Noise as the gears in the adapter are constantly turning. For me it wasn't loud enough to be a problem.
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