The length of an AUX cable can affect its performance, with longer cables potentially experiencing signal degradation or interference. As a general rule, shorter cables (up to 1 meters oto 3 meters) are less likely to experience noticeable loss of audio quality, while longer cables may require higher-quality construction to maintain signal integrity. Using high-quality cables with proper shielding and insulation can help minimize signal loss and ensure optimal audio transmission, even over longer distances.