Step 1: Buy an '06 TL w/ out nav----->DONE
Step 2: Convince wife I'm not crazy by showing her theKlassic's great looking install, saying, "Don't worry, honey, it'll go right back to factory! ----->DONE
Step 3: Shamelessly copy ITL, Moah's and theKlassic's hard work in my own car, learn from their trials and tribulations so as to minimize my own.
Seriously, I'm so happy you guys have done this, I'm giddy. Much respect. I must force myself to have patience, become one with the force, and complete my own install successfully.