Grounding point G14
| Grounding point G14 | 
| Connected components: | 
| Via crimp J99, main wiring harness | |
| 349 | Radio receiver, satellite radio | 
| 354 | Speaker amplifier | 
| 354F | Front speaker amplifier | 
| 354R | Rear speaker amplifier | 
| 354S | Bass speaker amplifier | 
| 673 | OnStar control module | 
| 718 | Radio receiver, TMC | 
 
   
   
 
     
		