This updated Gen 3 harness is for GLE customers that purchased their ASI kit from Green Line Engineering prior to the development of the GLE Dashboard and received a gen 1 harness. All gen 2 harnesses are compatible with the GLE dashboard with slight easy to accomplish modifications as shown in the video below. This gen 3 harness makes available the full capabilities of the GLE dashboard and required no modifications. Not sure if your harness is compatible? Please watch the video below to see if your harness is already compatible.