Looks like three seperate parts. If you have seperate cables, yours is the first one.
24447305 17 88 922 BASE, ROOF AERIAL (IDENT MX) (DUAL BAND GSM900 / 1800) (FOR ADDITIONAL RADIO AND TELEPHONE PARTS) (USED WITH ONSTAR WITHOUT EMERGENCY CALLOUT) (FOR ADDITIONAL ONSTAR OR NAVIGATION SYSTEM PARTS) ESTATE 21, 22, 23, F35, M35, P35 (C) 11122000- 11999999 1
24447123 17 84 800 BASE, ROOF AERIAL (IDENT PM) (DUAL BAND GSM900 / 1800) (FOR VDA TELEPHONE PRE-WIRING) (FOR ADDITIONAL RADIO AND TELEPHONE PARTS) (EXCEPT ADDITIONAL ONSTAR OR NAVIGATION SYSTEM PARTS) (NOT USED WITH ONSTAR WITHOUT EMERGENCY CALLOUT) ESTATE 21, 22, 23, F35, M35, P35 (C) 21000001- 1
24447145 17 84 802 BASE, ROOF AERIAL (IDENT PU) (DUAL BAND GSM900 / 1800) (FOR ADDITIONAL RADIO AND TELEPHONE PARTS) (USED WITH ONSTAR WITHOUT EMERGENCY CALLOUT) (FOR ADDITIONAL ONSTAR OR NAVIGATION SYSTEM PARTS) ESTATE 21, 22, 23, F35, M35, P35 (C) 21000001- 1