I have a 2005 4.8is with KW V.3's and I love it. Unfortunately I still have my dash lights going on, and it's kind of annoying. KW does sell a module to fix that situation, but if I remember correctly its $400ish. I've heard that the "modules" companies sell get installed in your mirror - no that's not a typo.

I'm trying to find someone that can do the coding. Hopefully someone around here has the answers.