My 1995 S350 antenna is located in the rear bumper and the antenna on the quarter panel does not come up unless I turn the phone on. My 1996 S420 antenna comes up with both the phone and radio. Strange? Also, do some reading on the transmission service on your 1996 because it takes a special fluid that can only be purchased at MB. This trans is a five speed electronic shift. Always leave the S/W switch in the summer mode as if in winter mode the trans will start the car off in 2nd gear. My MB tech says it's bad on the trans. Your car also does not have a dip stick, this has to be checked by a MB tech only. MB says change fluid every 100K, however, I do mine every 30K and I have 134K now with no problems. Good Luck!

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