QuestionDoes the 1989 mercury grand marquis have a transponder unit on it or any other type of security.
Thanks.
AnswerNope, smooth sailing.
2 different door lock systems are possible,
depending on the OEM equipment installed,
and a positive trigger trunk release.
All in all, not too bad at all.
Have a good one.
ALARMTEK
www.WIREWERX.com
www.CARALARMZ.com