1999 Chevrolet Blazer Owner's Manual - Page 132
1999 Chevrolet Blazer Manual
Page 132 highlights
yellowblue Universal Transmitter (If Equipped) Full-Size Console This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Changes and modifications to this system by other than an authorized service facility could void authorization to use this equipment. Mini Console 2-68