How-to: Gen I and II Aftermarket Radio Install

Discussion in 'Gen 1 & 2 - Guides (For How-to guides, NOT how-to ' started by the4biddendonut, Sep 2, 2010.

  1. the4biddendonut

    the4biddendonut Hurry up meow.

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    There seems to be a lot of confusion on how to install an aftermarket radio into the SHO. There is more than one way to install an aftermarket radio, but this is what I have found to be the simplest and cheapest way of accomplishing the task.

    This how-to will show you how to bypass the factory amp, so you can use an aftermarket head unit that has an internal amplifier.


    1) Here's what you need. I chose to solder all my connections with a pen torch. However, you can make your connections however you like (crimp connectors, scotch locks, etc).

    [​IMG]



    2) I started by stripping all the wires.

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    3) The harness on the left is the stereo harness that came with my Alpine deck. The two to the right are the standard Ford radio harnesses (purchased at Walmart for $8).

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    4) Connect the wires from the stereo harness to the Ford harnesses according to their color, with whatever method you chose. Connect yellow to yellow, red to red, blue to blue and so on. Some wires may not be used for every application, this is normal. I had one wire that was not used, so I capped it with electrical tape.

    I heated the wires with my pen torch and applied the solder to them.

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    5) Finished soldering.

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    6) Then, I wrap all the individual connections in electrical tape.

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    7) Just to clean it up, I taped all the wires together into a loom.

    The harness is finished. Now you are ready to install your aftermarket radio.

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    8) Remove the factory radio.

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    9) Disconnect the antenna and two other plugs. The two plugs on the left of the picture will not be used, so you can tuck them back into the dash and out of the way.

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    10) Now reach into where you pulled the factory radio out of and look for these two connectors that are pictured. Gen 1 SHOs will be plugged into another connector, just like in the picture. Gen 2 SHOs will have the same plugs, but will not be plugged into anything.

    These connectors that are hidden in the dash bypass the factory amp and allow you to wire directly to the speakers.

    [​IMG]




    11) These are the connectors that we are looking for. If you have a Gen 1 you need to unplug them and tuck the other side back into the dash and out of the way.

    [​IMG]




    12) Connect the harness you made earlier to the car harnesses.

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    13) Install the cage from the aftermarket stereo.

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    14) Plug the harness and antenna cable into your head unit.

    [​IMG]

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    15) Slide the head unit into the cage, making sure that there is enough room behind the stereo for all the wires.

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    16) Install the trim ring.

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    17) Put the faceplate into place.

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    18) Unplug the factory amplifier that's located in the trunk.

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    19) Lastly, test it to make sure it works correctly.

    [​IMG]




    20) Pat yourself on the back and enjoy.
     
    2BadSHOs and whiteman_01 like this.
  2. whiteman_01

    whiteman_01 SHO Member

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    Someone sticky please. This does come up quite often. But... test before sliding the deck all the way into the mount, just in case.
     
    the4biddendonut likes this.
  3. bully06

    bully06 SHO Member

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    Very nice write up, I second for a Sticky!
     
    the4biddendonut likes this.
  4. TYSHO

    TYSHO SHO Member

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    Nice write up but I would recommend not to use electrical tape because it dries out and comes apart, making faulty connections. The dash on the 89 is a little different and you cannot install a cage, owners just need to be creative and find a way.
     
    Last edited: Sep 2, 2010
  5. the4biddendonut

    the4biddendonut Hurry up meow.

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    I've never had any problems with electrical tape. I don't use the cheap stuff though.
     
  6. whiteman_01

    whiteman_01 SHO Member

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    Same here. I wrap each connection individually, then wrap them all together. Never had an issue.
     
  7. SHO1

    SHO1 Coke Is It!

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    Yep, takes a bit more work for an '89, but the cage can be installed/attached w/some careful modification to the dash trim bezel. Like you said: "just need to be creative and find a way" Will maybe add a pic of how mine is if/when I ever have it out again.
     
  8. Cl-Slick

    Cl-Slick SHOs b4 HOs

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    Very good write up! I just recently did this install, and it is exactly how described!
     
  9. the4biddendonut

    the4biddendonut Hurry up meow.

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    Color Codes

    +Red..............12v ignition
    +Yellow...........12v battery
    -Black............Ground
    +Blue.............Power antenna
    +Blue/white.......Remote turn on
    Orange...........Dashlight/dimmer
    Orange/white.....Dashlight/dimmer
    Orange/black.....Dashlight/dimmer
    +White............Front left positive
    -White/black......Front left negative
    +Grey.............Front right positive
    -Grey/black.......Front right negative
    +Green............Rear left positive
    -Green/black......Rear left negative
    +Purple...........Rear right positive
    -Purple/black.....Rear right negative
     
  10. quikSHOilver

    quikSHOilver Yamahaized

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    Heat shrink tubes >>>> electric vinyl tape. Nice write ups, Tho'!
     
    Last edited: Oct 25, 2010
  11. vortex2450

    vortex2450 Buying Parts...

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    Thank you :) Butt connectors plus heat shrink is the only way to go, if your feeling like being really professional you can also split loom the harness . :sun:
     
  12. 2BadSHOs

    2BadSHOs Freday-day

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    Mucha gracias!
     
  13. gmail

    gmail SHO Member

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    maybe i need to grab pics of my double din dvd player nav etc setup
     
  14. JahMan12

    JahMan12 SHO Member

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    gmail; Would you mind?
     
  15. waffles

    waffles SHO Member

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    Is there an aftermarket stereo that allows you to utilize the volume switch next to the intrument cluster?
     
  16. SHOPLUS

    SHOPLUS SHO Member

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    My 91+ has the premium sound so I used a newer style connector that transfers the little square plug to four RCA cables to plug into the outs on the aftermarket head unit. The only problem with this is that only some of the time do I get subwoofer. I think its just a cheap connector. However, some subwoofer is better than none at all with the splice method.
     
  17. EL SHO

    EL SHO Taco Manager

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    I'd be interested in knowing that too!;)
     
  18. kevinspann

    kevinspann 87 Octane

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    You have to buy brand specific adapters for those controls. Search under steering wheel control adapters.
     
  19. luigisho

    luigisho SHO Member

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  20. Fordlover96

    Fordlover96 SHO Member

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    I got a quick question guys, I didn't see anything here referring to the sub woofer in the trunk. Does it get any power doing it this way? Or is there something else that needs to be done? Thanks for the post, btw. It will definitely help me when I go to do my radio.
     

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