2004 SL dead radio

Hi,
I am one of the lucky folks owning a 04 Quest SL with the bad Clarion radio. I am in Canada, and the TSB that seams to be the solution in the US (http://www-odi.nhtsa.dot.gov/cars/problems/tsb/results.cfm?step=4&SearchType=DrillDown&type=VEHICLE&make=NISSAN&model=QUEST&typenum=1&vehtype=UNK&year=2004, NHSTA 10009555 ) and there is an equivalent number in Canada. Unfortunately, this how to be done under warranty and my car is out of this window.
I have been looking into 3rd party radio, but it seams that nobody has any product that could be fitted without major work. Did anybody replace the radio with a decent replacement radio?? Nissan is asking for 350$ ro replace the radio (and take the old one in return).

just wondering
i have 05 quest with clarion..and my stereo is not working..did you say anything about warranty of defects on this one?