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1978 radio volume issue

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Old Aug 28, 2011 | 09:37 AM
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Default 1978 radio volume issue

The radio and 8 track tape player are both functional on my 78, however the volume is not as loud as I would like it. On full volume setting its still very quiet, so much that you can not hear it when driving with the windows down.

Do these radios/cars have internal amps in them to help with volume?

Any help is appreciated as I would like to keep the current radio- its all I need (except for more volume)

Dan
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Old Aug 28, 2011 | 05:09 PM
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I'm fairly certain that the preamp and amp components in the '78-82 sound systems were built into the radio head unit. I do not believe they had a "convector" unit like the earlier C3 radios. You likely need to remove the radio head unit and have it repaired. If it is just a sound level issue, it is most likely that one transistor (or a transistor pair) is defective [final amp stage]. That's a pretty simple fix for a repair guy.
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Old Aug 28, 2011 | 07:17 PM
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i have the same issue only mine is the am/FM/CB unit and it will probably cost more than a nice modern unit to fix and still sound like crap.gets your top flite certification then pitch that garbage!
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Old Aug 28, 2011 | 07:23 PM
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cut the dash and put in a real radio .one of the best upgrades that i did .
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Old Aug 28, 2011 | 11:02 PM
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He!! yes. Get a BF hammer, a SawzAll and throw money at it. That'll fix anything...
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Old Aug 29, 2011 | 08:01 AM
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well thats how the goverment does it
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Old Aug 29, 2011 | 09:37 AM
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That's the point!!
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Old Apr 23, 2012 | 02:00 PM
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If you guys are going to get rid of your radios, I am looking for an original faceplate and all the original ***** for a 1978 Vette. If you still want to get rid of yours, please let me know. Thanks.
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Originally Posted by RedZR
...Do these radios/cars have internal amps in them to help with volume?...
Not after the 76 model year. 77 and later cars all have the newer style GM units.

Have your original repaired.

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Old Apr 23, 2012 | 03:01 PM
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I put a repro original in my 76 and it sounds pretty good with 4 way speakers. The quality is not the bst on the manufacturing however.
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