Still dont even have my Fit yet, but getting all my audio stuff in order. Already have my Apline headunit, just got my dash kit from Crutchfield, now just need my wiring harnesses and I am basically good to go. (wiring harnesses and antenna adapter available at the big box stores?)

2 things, is there room behind the dash for an XM Direct tuner along with the Alpine digital adapter for it? And where have you guys installed the antenna? I am thinking I want it out the back as I am not really a fan of tucking it under the window seal/molding.

 

I Installed my sirius antenna just behind the factory antenna at the back of the car. There isn't really enough rom for a tuner box behind the head unit. But there's plenty of room behind the glove box.

 

Cool good to know. The wires are long enough for everything if I have to put it there.