anyone have sirius using the skarkfin?

i bought the sirius module, interface module, and sharkfin adapter. i have the diy link for sirius install and the picture doesn't match what i'm seeing in my F. perhaps the F is different from the normal IS? anyway, is anyone here using sirius with the sharkfin? and if so, where does the sharkfin adapter connect?

i wish lexus didn't make it so misleading about sirius availability. it's just a checkbox on the build your F site, but so far it seems like a big pain in the ass.

thanks