Most likely, your HU is a unit that was capable of integrating with a Ford-provided cellular phone. When the HU detected the telephone was in use, it should mute the system. The HU installed in your car is likely not original to the 95 Contour.

Yours has apparently developed a fault so that it thinks the telephone is connected and is active.

I guess you could "just hang up and drive!"

Steve


98 Contour SE Sport 2.5 Duratec ATX The wifey's car 89 Taurus SHO - 246K miles 94 SHO ATX - 190K 1997 F-150 5.4L ATX - The Workhorse 150K. ANY THREAD WITH "OMG" or "WTF" ETC IN THE TITLE WILL BE IGNORED!