There is a thread somewhere by someone who did it. It was very painful and IIRC, they said they would not do it again. I figured out what it took them to do it and realized that at my shop we would have to charge at least $1200 for the factory alarm installed, PLUS recoding.
Musicar Certified audio upgrades
OE-Look Enclosures for F10/F30/F32/F22/etc
Add-A-Sub and Full-Bass Packages
Full Cabin 3W and 4W Upgrades
F10 Level Three Add-A-Sub