I want the smartphone headphone output AUX IN from the car radio to connect (pragmatic solution). That's with this cable practically impossible because at the slightest touch / movement on cable (happens sometimes when driving) the following issues: - Dropouts - Loud crack / crackling / crunching in the boxes - Smartphone becomes independent: * Call any number * Language is started * MP3 player pauses or goes out Get me he prefers a slightly wertigeres cable set with gold plated connectors.