1990 DeVille Firewall
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Electrical Technical Information Discussion, 1990 DeVille Firewall in Item Specific Cadillac Discussion; Hello! I two 12" subs in the trunk of my Cadillac. I have ran the RCA, Power Control, and Power ...
  1. #1
    patricko's Avatar
    patricko is offline Cadillac Owners Member
    Automobile(s): 1990 Cadillac DeVille
    Join Date
    Mar 2013
    Location
    Michigan
    Age
    22
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    27

    1990 DeVille Firewall

    Hello! I two 12" subs in the trunk of my Cadillac. I have ran the RCA, Power Control, and Power wires through the trunk. RCAs and Power Control are both connected to my head unit. I just cannot seem to find a hole in the firewall to fit a 4 gauge power wire through. I can't find any holes at all, as a matter of fact.

    If there are none, I will be willing to drill, but only in a safe location.

    Pictures will help! Thanks!!!


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  3. #2
    lanell73 is offline Cadillac Owners Member
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    Quote Originally Posted by patricko View Post
    Hello! I two 12" subs in the trunk of my Cadillac. I have ran the RCA, Power Control, and Power wires through the trunk. RCAs and Power Control are both connected to my head unit. I just cannot seem to find a hole in the firewall to fit a 4 gauge power wire through. I can't find any holes at all, as a matter of fact.

    If there are none, I will be willing to drill, but only in a safe location.

    Pictures will help! Thanks!!!
    Under your hood back on the fire wall under the master cylinder and brake booster you should see a black plastic coded cable in the middle of something that looks like a rubber stopper pull that stopper out and that should give you more then enuff room for your cable

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