I am in the process of installing an EVO-ALL into a Toyota Highlander Hybrid (2021). I was under the impression the THAR-TOY13 would make this process plug and play as it did in a previous install (2017 Mazda CX-9), however the instructions say to cut Telematics pin #33 and splice a wire to each end, plus tie into pin #4 (starter) for connection A16. All 3 other T-harness connectdions have been made, do I need to splice? I may abandon this remote start setup if so since the car has an extended Toyota warranty to 100k miles that could be voided if wires are cut.