LED’s not working in newer models

I’d like to replace my burned out tail lights with LED. I bought some Cree 3157 replacements and replaced my right side first since that was burned out it was blowing the 20 amp fuse every time. I bought another Can Bus approved style to see if that would work and still blew the fuse. I ran out of fuses so I upped to a 30 amp fuse and it doesn’t blow but the light does not turn on either. I have a 2015 850SP. I’ve heard from other people on FB that they experienced the same thing.