Hi, I have a 2004 Mazda 6 GT Wagon with the keyfob# KPU 41846. I was wondering if I can get the KPU 41805 because it has the trunk release button. I have seen 1 youtube video where this guy replaced his keyfob from a 41846 to a 41805 and it worked, but his wasn't a wagon and I'm not even sure...