2002 DeVille Base Sound Upgrades
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Cadillac Audio, Video and Security Systems Discussion, 2002 DeVille Base Sound Upgrades in Item Specific Cadillac Discussion; Hello, all. I am looking to upgrade the sound in my 2002 Base Deville (non Bose / non Nav). This ...
  1. #1
    yllasdivad080 is offline Cadillac Owners Member
    Automobile(s): 2002 DeVille Base
    Join Date
    Jan 2011
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    25
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    2002 DeVille Base Sound Upgrades

    Hello, all. I am looking to upgrade the sound in my 2002 Base Deville (non Bose / non Nav).

    This is what I want to do:

    Keep the factory head unit
    Upgrade all speakers
    Swap the factory amp with an aftermarket unit
    Add a subwoofer box to the trunk.

    I know how to upgrade the speakers and add a subwoofer, but I don't know how to swap the factory amp. If anyone has done this or knows how to do this and could share that information, that would be great! I have looked around a lot on this forum and have not seen much clear information on this.

    Thanks!

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  3. #2
    N*Caddy's Avatar
    N*Caddy is offline Cadillac Owners Master
    Automobile(s): 1997 Cadillac STS (BOSE w/AUX In, Massage Seats, URPAS, "Z")
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    Re: 2002 DeVille Base Sound Upgrades

    You do know the factory amp controls all the audio settings (like volume control) based on the information received from HU on the data line. There is no aftermarket amplifier that connects to the car data line and understands the protocol.

  4. #3
    todoralsfd is offline Cadillac Owners Member
    Automobile(s): 2002 deville DFW
    Join Date
    Dec 2013
    Posts
    10
    Im attempting the same thing sort of... I want to keep HU and replace all door speakers. Just cut and reconnect 3 ways and disable the tweeters on A post. For the sub can I do the same thing? Cut wires at speaker and connect new subwoofer keeping the factory amps?

    Also heard I have to make bracket for 10" sub since factory is 11". That's no problem just want to make sure I'm not opening Pandora's box.

    I realize what I'm doing May not be superb sound but it will be better than all blown speakers.

  5. #4
    N*Caddy's Avatar
    N*Caddy is offline Cadillac Owners Master
    Automobile(s): 1997 Cadillac STS (BOSE w/AUX In, Massage Seats, URPAS, "Z")
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    Re: 2002 DeVille Base Sound Upgrades

    Or instead of cutting your vehicle wires (really thing 10 times about this), just replace the speakers with original new.

  6. #5
    todoralsfd is offline Cadillac Owners Member
    Automobile(s): 2002 deville DFW
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    Re: 2002 DeVille Base Sound Upgrades

    Why? If they blew there obviously not very good quality. It's not the Bose system btw. So why not upgrade with quality speakers. I just want to make sure it's not going to be a drastic difference in sound.... 2 ohm to 4 ohm?

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