GM Service Manual Online
For 1990-2009 cars only

ETR RADIO CHANGES MIC. & TRANSCEIVER DIFFERENCES

ETR RADIO CHANGES 1981 98 & TORNADO MODELS DELCO ELECTRONICS IS NOW MANUFACTURING A NEW TRANSCEIVER ANDMICROPHONE FOR 1981 98 AND TORONADO MODELS. THE ETR CASSETTE CB AND THE ETR 8-TRACK CB WILL REQUIRE THE USE OF A NEW MICROPHONE AND TRANSCEIVER. THE NEW SILVER TRANSCEIVER REQUIRES A 5 PIN MICROPHONE AS COMPARED TO THE (GOLD) TRANSCEIVER WHICH REQUIRES A 4 PIN MICROPHONE. ETR AM FM STEREO 8-TRACK CB 16012720 RECEIVER 16011610 TRANSCEIVER (SILVER) 16011620 MICROPHONE ETR AM FM STEREO CASSETTE CB 16017340 RECEIVER 16011610 TRANCEIVER (SILVER) 16011620 MICROPHONE

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.