Power Pivot :: One Slicer To Control Two Pivot Tables That Have Different Source Data And Common Key

I have two data tables:

1) Production data with column headers: Key, Facility, Line, Time, Output
2) Costs data with column headers: Key, Site, Cost Center, Time, Cost

The tables have a common key named obviously as Key. The data looks like this:

Key
Facility
Line
Time
Output
Alpha

I would like to have two pivot tables which I can filter with ONE slicer based on the column Key. The first pivot table shows row labels Facility, Line and column labels Time. Value field is Output. The second pivot table shows row labels Site, Cost Center, and column lables Time. Value field is Cost.How can I do this with Power Pivot? I tried by linking both tables above to a table with unique Keys in PowerPivot and then creating a PivotTable where I would have used the Key from the Keys table.