I caution anyone against aftermarket modules that tap into the CAN bus. Every critical system on the vehicle is dependent upon a fully functional network, and any interference in that network can cause an infinite number of issues, ranging from an infotainment issue to a loss of power steering, stability control, transmission engagement, etc. The issues can be intermittent, or may be severe enough to pull down the entire network; I have seen both. When there is high network traffic, such as during an emergency maneuver when ABS and stability control are in full intervention, the last thing you want is your aftermarket high beam module interrupting communication.
