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 OE Wiring Harnesses & Stereo Adapters wwwd››Jeep›WranglerMetra preassembled wiring harnesses can make your car stereo installation seamless, or at least a lot simpler. With precrimped ends and prepopulated connectors, your.. Metra®Factory Replacement Wiring Harness with OEM Radio Plug Jeep Wrangler 2014, Factory Replacement Wiring Harness by Metra®, with OEM Radio Plug.