Radio amplifier issue
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  • 2 Post By glake89
Cadillac SRX First Generation Forum - 2004 - 2009 Discussion, Radio amplifier issue in Cadillac SRX Forums; About a week ago I posted a problem involving my 06 SRX radio having intermittent volume problems along with a ...
  1. #1
    jalexand61 is offline Cadillac Owners Member
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    Radio amplifier issue

    About a week ago I posted a problem involving my 06 SRX radio having intermittent volume problems along with a problem with my turn signal.
    I had thought they were related as my wife had indicated that both seemed to work or not work at the same time. In order to confirm this, today
    I replaced the turn bulb and it is now working, so the two problems were not related. What I have now is a situation where the radio has no volume
    bujt otherwise seems to be functioning, ie readout on front of radio is normal, indicating stations, etc., but there is just no volume. I have checked the
    amp fuse located in the rear passenger compartment fuse block and it is fine. Any other suggestions before I drag this thing to a repair shop?

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  3. #2
    conedoctor is offline Cadillac Owners Connoisseur
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    Re: Radio amplifier issue

    More than one AMP fuse?

  4. #3
    jalexand61 is offline Cadillac Owners Member
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    Re: Radio amplifier issue

    Quote Originally Posted by conedoctor View Post
    More than one AMP fuse?
    I could only find one fuse listed in the OM related to the amp. However, the fact that the radio amp was intermittent for a while suggests it is not a fuse issue anyway. More likely a loose connection or short somewhere?

  5. #4
    glake89's Avatar
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    Re: Radio amplifier issue

    Here is what the SM has to say-

    All Speakers Inoperative

    Important: The following information lists the most probable cause of the concern to the least probable cause followed by the appropriate test for that condition. If the list leads to the replacement of a component, always inspect for a poor connection before proceeding with the replacement. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

    All Radios

    Battery positive voltage circuit to the amplifier open--Test the battery positive voltage circuit to the amplifier for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
    Ground circuit to the amplifier open--Test the ground circuit to the amplifier for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
    No audio output from the amplifier--Replace the amplifier. Refer to Control Module References in Computer/Integrating Systems.

    Ground wires are always BK or BK/WT
    Whiplash_89 and Whiplash_89 like this.
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  6. #5
    jalexand61 is offline Cadillac Owners Member
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    Re: Radio amplifier issue

    All makes sense, now if I only knew where the amp is located (assume it is in the dash somewhere?) and how to access it.

  7. #6
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    glake89 is offline Cadillac Owners Connoisseur
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    Re: Radio amplifier issue

    Behind the left rear trim panel.
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  8. #7
    jalexand61 is offline Cadillac Owners Member
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    Re: Radio amplifier issue

    Was down with some medical issues for the past month and didn't get back to this thread until now. Since I have never attempted to remove the panels from the rear of this SRX, can anyone provide me instructions
    on where to start? Preferably, which panels need to be removed and in what order? Don't want to break anything.

    Thanks

  9. #8
    glake89's Avatar
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    Re: Radio amplifier issue

    From memory (always suspect for me)-
    1st. rear hatch sill trim, snaps off then un-hook from rings. Then 3compartment floor storage unit (if equipped)(3 Torx bolts in jack compartment. Look for screws in cubbies and cup holders(not sure there are any). Remember, if another panel is over the one you are working on, remove it first (like left rear door trim). I think there is a screw near the front of the panel. Pull out at the bottom of the side panel and where it goes to the headliner and then lift to disengage where it meets the quarter window.
    Go slow, each next move should be obvious.
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  10. #9
    jalexand61 is offline Cadillac Owners Member
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    Re: Radio amplifier issue

    Quote Originally Posted by glake89 View Post
    From memory (always suspect for me)-
    1st. rear hatch sill trim, snaps off then un-hook from rings. Then 3compartment floor storage unit (if equipped)(3 Torx bolts in jack compartment. Look for screws in cubbies and cup holders(not sure there are any). Remember, if another panel is over the one you are working on, remove it first (like left rear door trim). I think there is a screw near the front of the panel. Pull out at the bottom of the side panel and where it goes to the headliner and then lift to disengage where it meets the quarter window.
    Go slow, each next move should be obvious.
    Wow, don't know if this is something I want to tackle after all. I do have third row seating and rear air on this vehicle, in order to remove this stuff does the third row seat have to be in the up position? (of course that would be the only wan to get to the jack compartment). Appears that I may have to remove both the rear rear door trim and the back door trim with the a/c duct as they appear to overlie the lower 1/4 panel? The last thing I want to hear is that the 3rd row seating would have to be removed.

  11. #10
    glake89's Avatar
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    Re: Radio amplifier issue

    Now you know why dealer service is so expensive. If you remove rear (3rd) seat, you may be able to pull bottom and rear of panel out enough to access the amp. and its connectors as well as the ground attachments.
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