2014 Jeep Wrangler Car Audio Wire Chart - ModifiedLife Car Subwoofer Speaker Positive Wire (+): N/A. Car Subwoofer Speaker Negative Wire (-): N/A. Car Subwoofer Speaker Size: N/A. Car Subwoofer Speaker Depth: N/A. Car Subwoofer Speaker Location: N/A. The 2014 Jeep Wrangler radio wire color information above is updated as it is submitted by the Modified Life community. 2014 Jeep Wrangler Wiring Diagram | Free Wiring Diagram Variety of 2014 jeep wrangler wiring diagram. A wiring diagram is a simplified standard photographic depiction of an electric circuit. It reveals the elements of the circuit as streamlined shapes, and also the power and signal links in between the devices.