GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Right Front Frame Rail, Near Fender


Object Number: 589597  Size: LF
(1)Horn Assembly
Figure 2:

Front of Steering Wheel


Object Number: 374747  Size: LF
(1)Inflatable Restraint Steering Wheel Module Connector
(2)Steering Wheel Controls Connector
(3)Inflatable Restraint Steering Wheel Module
(4)Horn Connector Spring Loaded Contact
(5)Inflatable Restraint Steering Wheel Module Coil