THAR-GM4 - T-Harness for 2007+ Full Size GM vehicles. 
OEM Style T-Harness for 2007+ Full Size GM vehicles. 
THIS PRODUCT MUST BE SOLD, INSTALLED AND SUPPORTED BY A PROFESSIONAL.
- Remote Starters
- Alarm Systems
Features for remote-starter installations.
- Compatible with EVO-ALL. 
- Uses the EVO-ALL to control the vehicle immobilizer in DATA.
- THAR-GM4 Harness
-  Prior to install consult vehicle compatibility list.
-  EVO-ALL sold separately.