The two stereos combine to do what only one should. These are very similar in design, however not exactly the same.
It may be possible to repair one with the other, or ideally repair both stereos. The LED dial indicator is working fine on both stereos. The illumination bulbs are all burnt out on the 2002, but the 2000 is partially illuminated as can be seen in image #3.
Please refer to image gallery for further assessment of the items for sale.. The item "Vintage Pioneer KE-2000 KE-2002 Car Stereo cassette player old school late 1970s" is in sale since Tuesday, January 23, 2018. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Audio In-Dash Units". The seller is "digitallyunlimited" and is located in Portland, Oregon. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Russian federation, Israel, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia.