1990 Jeep Cherokee Car Stereo Radio Wiring Diagram Whether your an expert Jeep electronics installer or a novice Jeep enthusiast with a 1990 Jeep Cherokee, a Jeep car stereo wiring diagram can save yourself a lot of time. One of the most time consuming tasks with installing an after market car stereo, car radio, car speakers, car subwoofer, car amplifier, mobile amp, mobile navigation or any car audio electronics is identifying the correct 1990 Jeep Cherokee | Stereo Wiring Diagram 1990 Jeep Cherokee Stereo Wiring Information. Radio Battery Constant 12v+ Wire: Pink Radio Accessory Switched 12v+ Wire: Violet/Orange The stereo wiring diagram listed above is provided “as is” without any kind of warranty. Use of the information above is at your own risk. Leave a Reply.