Correction
SELECT [04LargeSampleHard].*, [Site-Merch].[Activity Type], [Site-Merch].[Placement Slot], [Site-Merch].[Exact Slot], [Site-Merch].Description, [Site-Merch].Title, [Site-Merch].ID
FROM 04LargeSampleHard LEFT JOIN [Site-Merch] ON '|'+[Site-Merch].ID+'|' LIKE '*|'+[04LargeSampleHard].ID+'|*';