Use the Denali wiring adapter for connecting T3s to the GEN II CANsmart Controller for a true plug & play connection. Compatible with all GEN II Denali CANsmart Controllers, no wire tapping or other modifications are necessary, just plug directly into the circuits of the CANsmart to send the signals from your controller to the T3 Lights. This harness is designed to power a set of four T3 lights; two rear T3s & two front T3s, but can also be configured for an installation of just front or rear T3s as well. Note: Not compatible with KTM 790 Adventure