Designed for use with after-market Blaupunkt car stereos only. Blaupunkt AUX 2 - 3.5mm jack lead for MP3 players and iPods, iPhones etc. If your head unit does not have the 2nd aux input (AUX2) you should use the AUX1 version of this lead instead which utilises the CD changer connection (blue plug) of your head unit.
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