BTW 76 radio question
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RWD 19xx-1984 DeVille and Fleetwood,
1985-1996 Fleetwood and Brougham Forum Discussion, BTW 76 radio question in Past Cadillac Vehicle Discussion; Seeing I am on here now I thought I'd ask. I had my original Delco radio repaired. Sent it away ...
  1. #1
    Jbmoffo's Avatar
    Jbmoffo is offline Cadillac Owners Member
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    BTW 76 radio question

    Seeing I am on here now I thought I'd ask. I had my original Delco radio repaired. Sent it away and it is back in the dash. Unfortunately I cannot get rear speakers to work. They are connected at the unit and in the trunk. Front ones sound pretty bad but at least they are working. Any thoughts as to replace or repair

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    The Ape Man's Avatar
    The Ape Man is offline Cadillac Owners Connoisseur
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    Re: BTW 76 radio question

    Try removing and reseating the speaker connections at the speakers.

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    YoshiMan's Avatar
    YoshiMan is offline Cadillac Owners Fanatic
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    Re: BTW 76 radio question

    I know the rear speakers on the mid 70's models actually only have one wire running to them, and the second "ground" wire which most other speakers have is just connected to the body.

    Did they work before?

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    Jbmoffo's Avatar
    Jbmoffo is offline Cadillac Owners Member
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    Nope. Did not work before the radio was repaired.

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    YoshiMan's Avatar
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    Try checking those grounds in the speakers, and then check and see if there is voltage through the rear speaker wire connectors . If not, you may have either wiring issues, or the radio still has problems of some sort.

    Also, did you try fiddling with the secondary dials under the volume and tuning dials?

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    Jbmoffo's Avatar
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    The speakers in the rear have a small wire that is broken. It sits across the cone and connects to the radio connector Common on the older 6 x 9 rear speakers. They have finally given up their ghost. Time for new ones.

  8. #7
    cadillac kevin's Avatar
    cadillac kevin is offline Cadillac Owners Master
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    Quote Originally Posted by Jbmoffo View Post
    The speakers in the rear have a small wire that is broken. It sits across the cone and connects to the radio connector Common on the older 6 x 9 rear speakers. They have finally given up their ghost. Time for new ones.
    I don't know if you can ground newer speakers to the chassis though. I know my dad did that with some pioneers in the apollo 20 years ago when he put in a new radio, but that car did not have much in the way of electronics (being a stripper economy car) to cause issues with.

    Just to be safe, get some 18 gauge speaker wire and run the grounds for the new speakers to the back of the radio chassis itself.

  9. #8
    The Ape Man's Avatar
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    Re: BTW 76 radio question

    Cadillac factory radios have used floating ground speakers since at least 1971. Don't know about older. Hook the speaker lead to ground and the radio goes pffffft. No workie.

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