That makes more sense...it's not the rain thing b/c I have auto wipers and I don't have that extra thing on the WS...XM uses the shark fin right? So sirius makes the most sense so far..That looks to be a Sirius satellite receiver. We had a couple of IS-F's come in back in 08' that had those. It's kinda bulky I must admit.
Ah my bad I didnt look that far over. I have the old style mirror too, whats wrong with it?^^^^No, that's what I thought too, until I looked at the pict. Their is something to the right of the moisture sensor behind the visor BTW, that F has the old style mirror.