I've got an older IQ3 hooked to my Dominator that I'd like to add my transmission temp input to the IQ3 screen. The dash has the usual 20 or so canned inputs from the Dominator. How do I add a data channel from the Dominator to the IQ3? Talked to Doug at Holley and he said he thought the first 4 inputs from the Dominator were accessible by the IQ3, so if I wired my transmission temp to J1-A3 (Input 2), how would I access this by the IQ3? Thanks, Steve