Same. Someone actually bought the CD changing contraption on eBay. I've always wondered who still uses CDs
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There's no wiring for any of this, but evidently a previous owner had installed a car stereo with car speakers in the main cabin cupboard. This worked well except that they've used the supplied (non-stainless) screws, which of course rusted and were a total pain to get out of the wood. I've kept the speakers and wiring and replaced the casette(!) radio and CD changer with a modern Bluetooth/USB/Aux input unit.