Yes, you have to take out the USB hub because AA/CP is handled by the hub. It's pretty easy though. I linked a YouTube video of where to drill to remove it without gutting the dash. I didn't take pictures, but here's how to do it:
- Remove the glove box (squeeze, yank)
- Remove the passenger center kick panel (yank)
- Reach waaaaaay up into the glove box area and push the two panels off in front of and behind the head unit screen. You can use the handle of a screw driver or something if you need additional reach. Expect your arm to get well beat up by all the pokey bits of metal in there.
- Mask every exposed edge around the screen/head unit. When you pull it out it WILL scratch the crap out of the dash if you're not careful
- Unscrew and remove the HU. Disconnect the cables.
- Drill out the hub carefully as demonstrated in the youtube video. It will be destroyed. It doesn't matter. Pull it out along with the old cables.
- Wrap the wires the new hub came with in the foam tape they came with. Be careful to do it lengthwise as indicated in the instructions.
- Snake the wires down from the HU area to the glove box area, then out through the front of the hole for the hub. There will be lots of excess. Connect the hub. Do NOT push it into place yet.
- Connect up the HU. Test everything.
- If it all works, bundle up the slack and tuck it somewhere nice and neat, then reassemble your car.
Once you have the various panels removed everything should be pretty readily apparent.