Your search for radio data system returned the following:

General Motors Class II data bus interface — retains OnStar system, factory door chime, and Bose system with aftermarket radio

IN STOCK

98 people say 

• Lets you install an aftermarket receiver in late model GM vehicles without losing the door chime and audible safety warnings, the Bose amplified speakers, or the ONSTAR system
• RCA inputs
  

General Motors OnStar® data bus interfaceRetains OnStar and factory door chime with aftermarket radio in select GM vehicles

IN STOCK

39 people say 

• Lets you install an aftermarket receiver in select late model GM vehicles without losing the door chime and audible safety warnings or the ONSTAR system

General Motors OnStar® data bus interface Retains OnStar and factory door chime with aftermarket radio in select GM vehicles

IN STOCK

49 people say 

• Lets you install an aftermarket receiver in select late model GM vehicles without losing the door chime and audible safety warnings or the ONSTAR system
  

GM Class II Data bus Interface

IN STOCK

145 people say 

• Lets you install an aftermarket receiver in late model GM vehicles without losing the door chime and audible safety warnings
• not compatible with OnStar-equipped vehicles
  

General Motors OnStar® data bus interface (Model GMOS-LAN-03) Retains OnStar and factory door chime

IN STOCK

5 people say 

• Lets you install an aftermarket receiver in select late model GM vehicles without losing the door chime, audible safety warnings, and the ONSTAR system
  

General Motors OnStar® data bus interface (Model GMOS-LAN-04) Retains OnStar, factory door chime, and factory amplifier

IN STOCK

3 people say 

• lets you install an aftermarket receiver in select late model GM vehicles without losing the door chime, audible safety warnings, and the ONSTAR system
• retains the factory amplifiers

Model GMOS-LAN-05: Retains OnStar, factory door chime, and Bose® system

IN STOCK

• Lets you install an aftermarket receiver in select late model GM vehicles without losing the door chime, audible safety warnings, or the Bose and ONSTAR systems

Retains OnStar and warning chimes with aftermarket radio in select 2006-up GM vehicles

IN STOCK

5 people say 

• Lets you install an aftermarket receiver in select late model GM vehicles without losing the door chime and audible safety warnings or the ONSTAR system