Installed your HID System and now your relay harness is buzzing?
Fix that annoying buzzing of the relays when you use the keyless unlock on the Trailblazer.
Scroll Down for the DIY. From: bigapple(http://forums.trailvoy.com/showthread.php?t=64575)

Flickering HID can be more then just a simple fix because it depends on why it's flickering. What is the cause? There are a few reasons HID Flickers.
     1) Canbus
     2) Poor Quality
     3) Poor Installation
Read below to find your solution.