Very Nice! I see you are planning on a navigation upgrade. My 01' does not have navigation. I was thinking, how hard can this be? All the wiring must be there so it would be a simple matter of buying the computer and Navigation display, WRONG! I was informed by my BMW dealer that I would need to replace the wiring harness at a mere $3000.00. Bought a Garmin Nuvi 660 and called it good, will spend the $$$ saved on wheel and tire upgrade.