PCI's MP3/XM wire for the 4 Link Pro. This wire allows you to listen to your iPod or other personal music device! It works with: PCI 4 Link Pro, PCI Comlink X (with modifications). It has a 3.5mm audio input and connects to 9 pin molex on the back of your intercom.
 

PCI's MP3/XM wire for the 4 Link Pro. This wire allows you to listen to your iPod or other personal music device! It works with: PCI 4 Link Pro, PCI Comlink X (with modifications). It has a 3.5mm audio input and connects to 9 pin molex on the back of your intercom.
 

PCI's MP3/XM wire for the 4 Link Pro. This wire allows you to listen to your iPod or other personal music device! It works with: PCI 4 Link Pro, PCI Comlink X (with modifications). It has a 3.5mm audio input and connects to 9 pin molex on the back of your intercom.