don't actually know how to connect a wiimote to dolphin. but if you are having problems linking them, then it might be your Bluetooth stack, as some models have problems connecting, check through the dolphin forum, there should be a solution there.
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi