You can find the heater wiring diagram for a 1989 Buick LeSabre in the vehicle's owner's manual. You can also obtain it from various auto part stores.
You can get a wiring diagram for a 2000 Buick LeSabre at any auto parts store. A Buick dealership may also be able to give you a wiring diagram for free.
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Connect the wiring harness to the back of your 1995 Buick LeSabre stereo. Secure the stereo with the stereo retaining screws.
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The owners manual doesn't have a wiring diagram... Go to AUTOZONE.COM and they may have one there.
A wiring diagram can sometimes be obtained from an auto tech at an auto part store as a print out. However, it can also be found in the cars maintenance manual.
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