Radio, Stereo, and Compact Disc: Service Precautions
Take care to observe the following precautions when performing inspections or removal and replacement of body electrical related parts.AUDIO SYSTEM
If the battery negative (-) terminal is disconnected, the preset AM, FM 1 and FM 2 stations stored in memory are erased, so be sure to not the stations and reset them after the battery terminal is reconnected.
NOTE: When replacing the internal mechanism (computer part) of the audio system, be careful that no part of your body or clothing comes in contact with the terminals of the leads from the IC, etc. of the replacement part (spare part).