I am switching from my GSM phone to CDMA phone in the car. It already had the Cingular GSM carkit installed. The Motorola carkit works with both except the cradle. I am wonder if I swtich to CDMA, do I need a CDMA antenna or they're both use the same? Thanks in advanced.

__________________
1986 560SEL - Alpine headunit with DVD Navigation system, European headlights, Parrot bluetooth carkit.