By browsing through similar threads I've seen people talk about the use of relays but I'm not sure how I'd use one in this situation. I only have this single wire that branches off from the video cable: I can't use the front of the vehicle as the wire is fixed to the video cable wire. I tried loosely wiring to these connectors: But the results were inconsistent to say the least. I also tried wiring to whatever these connectors are: To no avail. What are my options here?