SOLVED factory USB functionality with aftermarket radios

The Fascinating History of Car Audio

Add a new car stereo, keep your car's factory features

2022 aftermarket radio system, Page 9

Struggling with CarPlay install : r/crz

To add Bluetooth to your old car's factory radio the easy way, go through the CD changer input

HFL Keep With Aftermarket Radio Circuit

How To Modify Your Car Stereo For Bluetooth Or Aux-In

Best Aftermarket Radio - Car Talk

Struggling with CarPlay install : r/crz

Add a new car stereo, keep your car's factory features

Factory Stereo Replacement Interface Compatible with 2004-Up SELECT General Motors Vehicles

GM3000SW