My '97 Sable GL was imported privately into Saudi Arabia from the USA and the factory radio doesn't tune properly here. It only tunes on odd frequencies - 91.3, 91.5, 91.7 etc - but all local radio stations are on the even frequencies like 91.4. Can I reprogram the radio somehow or do I need to replace with a radio from a car sold in this market? If I have to replace I guess the Mach is the one I should look for?