I just plugged everything in to make sure it worked (it did!):


I then pulled everything out and decided to mount the KCA-420i to the Sirius bracket. There was plenty of room for both. Used locking nuts, of course...





There is plenty of room with the Sirius module mounted to feed the Alpine's 2 cables out the back of the unit. I zip-tied the excess cable and stuffed it between the BM53 radio and the Sirius bracket:


Here is everything put back together. I put the IV2 on top of the Bluetooth ULF so I could easily get to it for future firmware updates. For firmware updates the car needs to be in position 1 (for ibus communication) with the IV2 plugged in and a serial cable running to your PC.



With the carpet back on, its super clean. There is velcro under the ipod to secure it in place: