I just went out and bought a sound bar with polk audio speakers in it. Based off of what I see you plug both the speakers and dome light in with that wiring harness that is built into the sound bar... How do I know if this will work with my jeep?? I have the pre-drilled holes in my roll cage but I cant find the male end to the wiring harness. It's a 97 wrangler sport. Please Help me with this install! Thank you!