Great write up.
Answered all of my questions but one. I have brought a used iTSX 4015 unit which is unmarried/unlocked. I have updated it with my PC.
Are the pre-loaded tunes the same for all the itsx 4015 units or can they be different?
The reason I ask is because when I connect to the car, under options for the CAI, there are a few to choose from but not Airaid and I thought I had seen a video showing airaid as an option.