I installed 4.5 on mine.. but I have Oasis.. and a VCMII.. it works fine. I have had no issues.. I maybe able to load it onto a USB drive and try and put it up somewhere for download.. I can try.. otherwise take it into a dealer and ask them to install it
I'm interested. Let me know if you're able to post the install file somewhere for download. (My car is tucked away for the winter and I don't trust the local dealer, so that's not an option.)