Electrical Wiring for Boost Gauge

Here’s the T-Tap connectors I used. Not using the White/green stripe wire for ground. I just grounded my -negative under the dash.

 

Ended up making a new harness for the gauge however I didn’t not end up using it. Upon further inspection of my wiring a small cable was exposed and touching other causing the short. Took it apart, re-wired, and quadruple checked lol. It works like a charm. Thank you all for your help and input. I truly appreciate you all. Excited as she’s about to reach 100k, finally lol. Hope this helps someone else I’ll post pics of the wiring and yup it dims with the rest of the lights