The Rugged Radios iPhone 3.5mm 4C plug connect cable is built to feed an intercom AUX port from an iPhone or similar device using a 4-conductor plug. It provides a simple way to send music or phone audio into a vehicle intercom system without additional adapters. Use it when you want direct AUX integration between a phone and your intercom setup.
Rugged Radios IPhone 3.5mm 4C Plug Connect Cable for Intercom AUX Port