Ok, I missed that. The '94 does not have fiber optic. That started late '98. Anyway, cutting the yel/blk wire normally will take care of the problem if the word PHONE shows up on the screen. If it doesn't then the problem is most likely the radio. Leaky capacitors are the main reason for the problem. It will most likely be the Alpine CM2194, CM2294 radio. We can rebuild it. So call us for pricing. I hope this clears up some questions.

Cleeve Morrison
La Jolla Audio Repair
www.lajollaaudiorepair.com