What I was forced to do was cut the wires, strip the ends then splice and solder them back together. I wired power & ground at the DIC, and data at the DLC, which is a group of wires with a common comb-shaped connector closing the circuit amongst them, and is located under the dash near the OBD II connector. If your data wire isn't long enough, then you can also wire into either IPC or DIC.