A:Answer Hello Randy, It is sometimes possible to interface many types of existing O.E.M., (Original Equipment Manufactured), units and features with many of the new radio / head unit systems on the market today. However it is very common to need some sort of "Interface Module", and sometimes more than one depending on the items being reintegrated into the new system. There are many companies that make these types of interface modules, and it would be best to consult with the Service Mgr., or Installation Technician at a quality stereo shop, like Best Buy to go over the options of what may be needed for your specific vehicle.