I would agree with complication of removing an integrated system like sync. I have the El Cheapo S not no sync. I would like to move up to touch screen system. Yes there are many OE system tap systems. For $300 my cost I can get a Sony DVD touch screen with BT. I understand why the focus might not be the top on the list for aftermarket installs. I think most people who buy a Focus will have the entry lvl sync or have the real MFD system.
Does anyone know if the radio harness is the same as the Fiesta. I might get a ReQ and Parrot setup.
FYI Sirius off the phone via BT is a better experience that a full tuner on my daily commute. No cut outs when going under bridges.