Genuine GM 20842596 Mobile Telephone Digital Antenna Genuine Oem:Yes, Category 2:Electrical, Superseded Part Number:10335503, Item Name:Antenna, Category 1:Electrical Brand:GM, Fitment Type:Direct Replacement, Other Part Number:10335503, Part Ref# On Diagram:ONLY PART REFERENCE #1 ON THE DIAGRAM IS Manufacturer Part Number:20842596, Category 3:Antenna, Alternate Item Name:Antenna, Quantity Needed:1