If code protected and you are original owner you would have been given code, alternately you would have to contact your dealer.
Are wiring harnesses the same or did one of the cars have the behind-the-glove-box amp?
98 Mystique LS v6 atx 110,000km
97 Contour LX v6 atx 125,000km
stock CD on LS, cass on LX
spoiler, tinted windows on LS only
4 wheel discs on LX only
All other available options on both
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