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  1. #1
    Join Date
    Dec 2006
    Location
    Tigard, Oregon
    Posts
    3,016

    Default Another Stereo Makeover

    I just finished a minor makeover to my stereo system consisting of the following:

    Added third battery
    Relocated subwoofer amp
    Added power and ground distribution blocks
    Added Stinger voltage display for stereo batteries
    Added remote LED for ACR
    Added in-dash aux input plug
    Added iPhone4 mount at the helm
    Added JL Audio 7.5V line driver with level control at helm for Exile Harpoon

    So here is what it looked like before I got started. The Exile subwoofer amp was mounted to the fresh air chaise and the power and ground cables were connected directly to the stereo batt (it was a mid summer, quickie install); thermal circuit breakers were used on the power cables for the other two amps; negative cables went directly to the stereo battery.



    So I took the two batteries out and installed a group 29 125AH battery under the port bow seat as shown. I chose this location because I did not want to lose any space in the cubby under the glove box as that is always packed full of backpacks, lunch coolers, etc. I also added a ground distribution block with 1/0 cable to the battery and 4 gauge to the amps.


    Only about half of the battery is visible.


    It clears the fiberglass lip by about 1/4".
    Last edited by moombadaze; 05-17-2011 at 10:54 AM. Reason: change battery group size per Al
    Al

    2006 Mobius LSV

  2. #2
    Join Date
    Dec 2006
    Location
    Tigard, Oregon
    Posts
    3,016

    Default

    I then installed a second group 29 125AH stereo battery and hooked it up in parallel with the one under the bow seat. I used 1/0 cable for the battery jumpers. I reinstalled the group 29 55AH starting battery and hooked everything back up. Note also that the sub amp is gone.


    I replaced the thermal circuit breakers with an individually fused power distribution block. Again, I used 1/0 to the switch and 4 gauge to the amps. Note that only one cable is visible to the switch but there are 6 more cables attached to the switch but they come in from behind it so you can't see them.


    I added this hidden 20A switch that I will use to take the starting battery off line from the on board charger. This is desirable when both batteries are significantly discharged so that all 20 amps from the charger can be directed to the stereo bank. Once the stereo bank is fully charged, I flip the switch on and the starting battery will get charged. Thanks to David from Earmark for this tip.
    Last edited by newty; 05-17-2011 at 12:25 PM. Reason: change battery group size per Al
    Al

    2006 Mobius LSV

  3. #3
    Join Date
    Dec 2006
    Location
    Tigard, Oregon
    Posts
    3,016

    Default

    Here is where the sub amp was moved to. This is just aft of the fresh air chaise. It's held on by two screws at the top that go into the rubrail backing strip. I will probably make a second amp rack at some point for the sub amp but this will do for now. The plug is for the on board charger.


    Next, I installed a Stinger voltage display at the helm and hooked it up to the stereop batts so that I can keep an eye on how much juice they have left. I installed a toggle switch where the horn's push button reset used to be. Finally, I installed a remote LED that is connected to the ACR so I can monitor what the ACR is doing.


    Closer shot of the Stinger voltmeter, the on/off toggle switch, and the green remote LED for the ACR.


    Close up of the Stinger.
    Al

    2006 Mobius LSV

  4. #4
    Join Date
    Dec 2006
    Location
    Tigard, Oregon
    Posts
    3,016

    Default

    Next I installed an aux input jack and a tower level control (actually controls the JL line driver) on the ignition switch panel. I also previously mounted the speedo adjust knob that used to be behind the dash panel. Finally, the sub level control and the Harpoon throttle box control knob were mounted under the dash in this same area.


    I like having my iPhone4 at the helm to control the music selection direclty from it so I got a handlebar mount for it and attached it to the windshield support pole. I don't trust suction cup mounts so this seems to be a solid mounting solution.


    Close up of handlebar mount. Can also be easily rotated to hold the iPhone in landscape mode. The cord both charges the iPhone and carries the audio signal. This is a much cleaner signal than going thru the 3.5mm headphone jack on the iPhone.


    Here is the other end of the cable which actually has two parts - one plugs into the 12V port and the other to the aux input jack.


    That's it! I feel like I am well set up now to manage my stereo batteries and keep an eye on the ACR to make sure that it's doing it's job. I also can have my iPhone at a convenient location rather than in the driver's cup holder where I had it all last summer. With 250AH on the stereo bank, I should have lots of play time when anchored in the swim cove.

    Al
    Al

    2006 Mobius LSV

  5. #5
    Join Date
    Nov 2003
    Location
    Land O Lakes, Florida
    Posts
    5,908

    Default

    Al, in pic 2 are those hinges I see holding the amp board in place?
    Hey, Its Moomba time

    13 Mobius LSV
    08 Mobius LSV-sold
    03 Mobius LSV-sold
    life is about finding the balance between being a responsible adult and staying young at heart

  6. #6
    Join Date
    Jul 2010
    Location
    Pacific Northwest
    Posts
    237

    Default

    Nice clean install, looks good!
    2004 Moomba LSV Blue

  7. #7
    Join Date
    Jan 2010
    Location
    North Texas
    Posts
    1,822

    Default

    looking good man.

  8. #8
    Join Date
    Dec 2006
    Location
    Tigard, Oregon
    Posts
    3,016

    Default

    Quote Originally Posted by moombadaze View Post
    Al, in pic 2 are those hinges I see holding the amp board in place?
    Yes. The amp rack is screwed to the rub rail backing strip on top and then secured by hinges at the bottom. I was going to use L brackets but since it's not at a 90 degree angle, I went with hinges. The rack is snug against the side of the boat so the hinges just prevent the bottom from sliding out. It's not invisible like some of the other more elaborate schemes others have devised but with the batteries in place, they are barely noticeable and were very easy to install.
    Al

    2006 Mobius LSV

  9. #9
    Join Date
    Dec 2006
    Location
    Tigard, Oregon
    Posts
    3,016

    Default

    The stereo batteries are actually group 29, not 27. Could one of the mods please edit this on the first and second post as I can't seem to. Why is it that I cannot edit my first 3 posts? Thx.
    Last edited by cab13367; 05-17-2011 at 10:35 AM.
    Al

    2006 Mobius LSV

  10. #10
    Join Date
    Mar 2010
    Location
    Arkansas
    Posts
    2,544

    Default

    Put the label maker to work!

    Looks good, I like how you integrated all the switches you could into the dash for a factory look.
    2006 Supra 24SSV

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