SL/R230: rear qtr window replacement

getting ready to replace the rear qtr window regulator in my wife's 2004 SL500. couple of questions
In order to access and remove the trim panels does the top need to be down?
and if top needs to be down in order to do so, and it cannot be operated with the switch because the rear qtr window issue, how does one manually open the top?
Any insight would be greatly appreciated
Thanks,
Jason






Any and all insight and experiences here would be greatly appreciated.
Thanks,
MK19


