go for the 10si or 12si, plus kit. Read the whole site.
The CS is a 1 wire. You can make the SI a 1 wire easily if you wish. Just plug #1 to the Batt terminal. Same. #2 stays loose. edit: i think if you plug #1 to #2 it might do the same, but not sure.
A one wire alt. means if you start and idle without revving, no charging. ...that and the battery light issue.
