Filter a Parameter with Long List of Values Using Type Ahead

I have a customer who has huge numbers of SKUs. Their reporting is using and SSAS cube as the data source. When filtering an SSRS report the users have to scroll through many many records to get to the SKU they want. There is a type-ahead feature built into SSRS but you have to type superfast and hit it exactly in order to make it work. I came across this great solution, and would like to blog the step-by-step with a cube as datasource.