1986 Jeep Cherokee | Stereo Wiring Diagram 1986 Jeep Cherokee Speaker Sizes. Audio Front Speakers Size: 5 1/4″ Speakers Audio Rear Speakers Size: 5 1/4″ Speakers. The following information is currently not available: Radio Illumination Wire Stereo Amp Trigger Wire *If you know any of the above or any other missing information please use the comment box below to notify us. 1986 Jeep Cherokee Car Stereo Wiring Instructions Whether your an expert Jeep Cherokee mobile electronics installer, Jeep Cherokee fanatic, or a novice Jeep Cherokee enthusiast with a 1986 Jeep Cherokee, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 1986 Jeep Cherokee vehicles are becoming increasing more difficult to identify due to the installation of more advanced factory oem electronics.