Going a bit off topic, I'm thinking of getting the GPS add-on for the Alpine IVA-W202E. I got quoted $899, just wondering if anyones installed it or got it cheaper?

Also, i'm getting an auxillary adapter over the FM modulator since i've heard it provides slightly better quality. Through Honda its around $50, can anyone backup this info?

Is it possible to interface the steering wheel controls with the dvd player as well as the existing honda unit?