2008 Jeep Compass Trailer Wiring | etrailer Call 800-298-8924 to get Expert Service ordering a Trailer Wiring for your 2008 Jeep Compass. Complete installation instructions and lifetime technical support on all Trailer Wiring purchases. Lowest price guarantee on accessories for your Jeep Compass and the fastest shipping available. 2008 Jeep Compass OE Wiring Harnesses & Stereo Adapters Jeep Compass 2008, Factory Replacement Wiring Harness by Metra®, with OEM Radio Plug, Fully Pinned. For factory stereo. This high-quality Metra wiring harness is just what you need to replace your defective or aged factory wiring..