Review on 📻 Enhanced SWRGM-48 Radio Replacement Interface Preserving Steering Wheel Control and Original Chime Functionality for Select GM Class II Vehicles with Bose Amplified & Non-Amplified Systems (2002-2013) by Phillip Johnson

Works great for 2002 Chevy Cavalier with non-amplified rear speakers. This air interface allows the stock amplifier to drive the rear speakers when replacing a stock GM radio with an aftermarket radio. In addition, all four speakers have been replaced with new ones from Pioneer. The backs were 3-pin and used two main wires instead of the standard 4-wire GMs. Important: Please note that your vehicle's computer will not function properly if you do not have an interface that takes the input circuits back to the ECM. This interface completes the 2002 Cavalier's circuitry and ensures that the vehicle's dash sensors are functioning properly. GM ran some of these key circuits through the original GM radio. If you don't have an interface you can't get your car to run properly and you won't have an aftermarket radio. Summary: Get an interface for your app if your brand requires your car computer to work properly when installing an aftermarket radio. This is the only way your car can work properly with a non-original radio.