Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

Results 1 to 8 of 8

Thread: BTW 76 radio question

  1. #1
    Jbmoffo's Avatar
    Jbmoffo is offline Cadillac Owners Fanatic
    Automobile(s): Currently: '76 Coupe. '73 Fleetwood (SOLD) 76 Coupe (SOLD)
    Join Date
    Nov 2011
    Location
    Ramsey, NJ
    Age
    45
    Posts
    161

    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


  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    The Ape Man's Avatar
    The Ape Man is offline Cadillac Owners Connoisseur
    Automobile(s): '80 Fleetwood Coupe, 1994 and 1995 Mercedes 140 Coupe
    Join Date
    Feb 2005
    Location
    Southern NJ
    Age
    54
    Posts
    2,096

    Re: BTW 76 radio question

    Try removing and reseating the speaker connections at the speakers.

  4. #3
    YoshiMan's Avatar
    YoshiMan is offline Cadillac Owners Fanatic
    Automobile(s): 1975 Coupe Deville D'Elegance
    Join Date
    Oct 2012
    Location
    Denver, CO
    Age
    32
    Posts
    261

    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?

  5. #4
    Jbmoffo's Avatar
    Jbmoffo is offline Cadillac Owners Fanatic
    Automobile(s): Currently: '76 Coupe. '73 Fleetwood (SOLD) 76 Coupe (SOLD)
    Join Date
    Nov 2011
    Location
    Ramsey, NJ
    Age
    45
    Posts
    161
    Nope. Did not work before the radio was repaired.

  6. #5
    YoshiMan's Avatar
    YoshiMan is offline Cadillac Owners Fanatic
    Automobile(s): 1975 Coupe Deville D'Elegance
    Join Date
    Oct 2012
    Location
    Denver, CO
    Age
    32
    Posts
    261
    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?

  7. #6
    Jbmoffo's Avatar
    Jbmoffo is offline Cadillac Owners Fanatic
    Automobile(s): Currently: '76 Coupe. '73 Fleetwood (SOLD) 76 Coupe (SOLD)
    Join Date
    Nov 2011
    Location
    Ramsey, NJ
    Age
    45
    Posts
    161
    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
    Automobile(s): chevy 350 powered 86 FWB, 00 safari h.t. 66 toro, 83 lesabre
    Join Date
    Dec 2010
    Location
    St. Louis, MO
    Posts
    6,397
    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
    The Ape Man is offline Cadillac Owners Connoisseur
    Automobile(s): '80 Fleetwood Coupe, 1994 and 1995 Mercedes 140 Coupe
    Join Date
    Feb 2005
    Location
    Southern NJ
    Age
    54
    Posts
    2,096

    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.


Bookmarks

Cadillac Posting Rules

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Read about Lincoln | Buick | Kia Forte Forum