Direction on how to install E-Open in to a BMW Z4

Please note the following:
1) This is for information ONLY; you take full responsibility for what you do. If you blow up your car, do not come yelling at me.
2) I did this install on a US spec 2005 BMW Z4. I do NOT know if it will work on BMW’s from other countries.
3) This install did NOT work because my Z4 already had an auto top down feature from BMW that is conflicting with the E-Open. In order to get this to work in my car I have to find out how to disable the internal remote top down feature. The unit was removed from my old 2003 Z4 and it worked just fine. All of the connections are the same.
The car: If your car was made 4/04 or later, you will have problems. The car already has an Auto-Top down feature.