antenna is simple. rmeove left side of trunk interioe panel. undo not on top of antenna. undo bolt inside trunk on bottom and unplug the wiring harness and pull the sucker out.

Have you tried a different radio to see if that is the problem?

Is it possible that your 93 had 2 amplifiers not one?

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon - Sold
2006 E350 Wagon - 368 - Dead
2015 GL350 Bluetec - 197U