Pivot Table For Changing Data

I'm creating a pivot table based on a section of data that will continually be of variable size. I'm trying to think of a way to command VBA to create a pivot table without giving an absolute reference to the table's source data. I can automatically select all of the data regardless of size, so I'm trying to see if I can command Excel to create a pivot table based on "Selection" instead of an absolute reference, in much the same way I might use Selection.Name instead of specifically defining a name's parameters. This is the text I currently have in VBA for the pivot table.

ActiveWorkbook.PivotCaches.Add(SourceType:=xlDatabase, SourceData:= _
"End!R1C1:R424C14").CreatePivotTable TableDestination:="", TableName:= _
"PivotTable2", DefaultVersion:=xlPivotTableVersion10

My current idea is to name the range (a task I *know* how to do relatively) and refer to the named range instead of the RC:RC jumble.