Gily, The polarity was never reversed. The gauges worked following that charging anyway. They just stopped over the last week. In answer to the top question. The windows do not try to go up when latching the roof... you just hear the hydraulics pull the roof down tight. I will retry disconnecting all plugs from the top control unit tomorrow and see what happens. As far as the antenna is concerned... I'm not even focusing on it until the other probs are resolved. There is no mention in the owners manual of synchronizing the windows. BTW, how can I recognize the Xenon range adjustment if it exists?
Earl, I have that gut feeling as well that it is not the cluster. I'm thinking that the fuse/circuit/signal that keeps the gauges from working now also impacts the turn signals and top ie: the control unit won't allow the top to unlatch if the car is running, but without a signal it does not know... anyway just swags at this point.
1994 E320 Coupe (120k)
1990 300SL (BBS,RENNtech adds)
1988 260E Sedan (180k)