Not sure how I missed this thread when it was originally posted, but I just wanted to say great job on the install!

Based on your feedback (and that of others), we've actually put together a complete package that includes everything needed to upgrade a 2002-2008 factory Gravity III system to the 2009+ version. We're looking for someone to document their install as 08LSV did using the package, so if anyone is interested, get in touch with me and we'll try to work something out.

Jason