Arbetrader,
The VAIS SLI2-up works just fine in my 2004 LX with ML and an iPhone 4s. I am using the MD changer mode (CD changer mode is also an option). IIRC i posted pictures of the install on a thread here somewhere. Wish the 04 had a better interface but it works well for what it is and also charges the phone; quite handy for long trips. I manufactured a simple aluminum bracket to mount the phone to the left of the nav screen as well.
J
Thanks for that update!