GMTRK4
Installation and Operation Manual
PG 38/42
REV: BETA (4/4/2020)
10.2.
Suggested Wire Routing for Air Horn System
Figure 33
–
Suggested Wire Routing for Horn, Air Compressor, and Pressure Switch (GMTRK4 Shown)
10.3.
Disconnect Vehicle Battery(s)
10.3.1.
Consult Owner’s Manual.
10.4.
Connect Wiring to Fuse and Relay
10.4.1.
Find a suitable location for supplied Fuse and Relay. Shown below is an example location under hood
next to Battery mounted on firewall. Use supplied self-tapping screws, as necessary.
Figure 34
–
Relay and Fuse location example under hood (2020 Silverado 5.3L Shown)
10.4.2.
Install supplied fuse holder on end of power wire by cutting the loop in fuse holder and connecting
supplied Ring terminal to one end and Butt connector on other end.
CAUTION:
Do not install 30-amp fuse until all electrical connections are final.
Fuse
Relay
FRONT
