Key buzzer to chime

FYI, here is a link to one of the Ford modules I found Door Chime Module - E7DB-10D840-AA - 1989 - 1997

Looks to be something that came in a bunch of different fords. Found it listed for mustangs as well as the listed models in the link.

Here is a link to a page where some one took one apart and fixed it. http://www.allfordmustangs.com/foru...me-module-howtorefurbish89to91chimemodule.pdf

Based on the above, looks like it doesn't interface with the radio speaker, so that might make it easier. But haven't looked at wiring diagrams to trace it out and figure out if it could be wired in.