Headunit wire diagram?

  1. Anekin007

    Anekin007 Senior Member

    Joined:
    Dec 27, 2015
    Posts:
    173
    Thanked:
    163
    Location:
    California
    Car(s):
    2016 Civic EX
    anyone know or have the wire diagram for the headunit yet?
     
  2. josby

    josby Senior Member

    Joined:
    Dec 11, 2015
    Posts:
    789
    Thanked:
    478
    Location:
    Central VA
    Car(s):
    2016 Civic Touring sedan, 2008 S2000
    #2 josby, Apr 9, 2016
    Last edited: Jul 21, 2017
    There are like 8 connectors on the headunit. Assuming you want speaker connections, here it is for all except Touring (or any of the others with 10/12 speaker systems):

    Untitled.png
     
  3. OP
    Anekin007

    Anekin007 Senior Member

    Joined:
    Dec 27, 2015
    Posts:
    173
    Thanked:
    163
    Location:
    California
    Car(s):
    2016 Civic EX
    Thanks! I think that's what I was looking for. what are the other harnesses? Do you have the diagra, for the others?
     
  4. Trey

    Trey R-00621

    Joined:
    Mar 23, 2017
    Posts:
    953
    Thanked:
    1,086
    Location:
    Atlanta, GA
    Car(s):
    2017 CTR #00621
    Can someone post up the Type-R headunit wiring diagram too? Thanks!
     
  5. Rikdrt1

    Rikdrt1 Senior Member

    Joined:
    Jun 10, 2017
    Posts:
    116
    Thanked:
    48
    Location:
    sandiegoo
    Car(s):
    Toyota Tacoma, Honda Civic
    Civic Si (X-Gen) ... anyone have the HU diagrams ?
    I assume these don't have RCA jacks since they have their own DSP somewhere.

    if that's the case, how would I bypass it all and install a 5Channel amp ?
     
  6. Trey

    Trey R-00621

    Joined:
    Mar 23, 2017
    Posts:
    953
    Thanked:
    1,086
    Location:
    Atlanta, GA
    Car(s):
    2017 CTR #00621
  7. Rikdrt1

    Rikdrt1 Senior Member

    Joined:
    Jun 10, 2017
    Posts:
    116
    Thanked:
    48
    Location:
    sandiegoo
    Car(s):
    Toyota Tacoma, Honda Civic
    dang, by the time I am done with this '86' and an amp, I am in for almost 700 and still need installation.

    hmmm... Honda didn't make this easy.
    if they wanted to call this a premium audio system, I wish they would of spent an xtra 400-600 and done this right so we aren't all just spending money on crazy fixes. sucks.

    thanks.
     
  8. josby

    josby Senior Member

    Joined:
    Dec 11, 2015
    Posts:
    789
    Thanked:
    478
    Location:
    Central VA
    Car(s):
    2016 Civic Touring sedan, 2008 S2000
    spdif.png

    There are 12 connectors on the back of the headunit. This is the one that carries the music to the factory amp. To date, no one has tried connecting that SPDIF connector to an aftermarket DSP to see if it's usable or not.

    Everyone is just tapping into the amplified signals coming out of the factory amp instead. They're crossed over, so if you want different crossover points, you'll need a summing DSP. There's a factory EQ curve applied, so if you want to get rid of that, you'll need a DSP that does un-EQ. The subwoofer output is flat down to 20 Hz so you don't need a DSP that does bass restoration.. If your DSP adds much delay, your Bluetooth callers will hear themselves echoing back. Some audio content is only on the center speaker.
     
    Trey thanked this.
  9. Trey

    Trey R-00621

    Joined:
    Mar 23, 2017
    Posts:
    953
    Thanked:
    1,086
    Location:
    Atlanta, GA
    Car(s):
    2017 CTR #00621
    Looking at that pic, I'm wondering if I unplug the SPDIF cable to the factory amp and got the Metra headunit harness and plugged it into the back of the factory radio I could use the speaker cables to run to my lc2i from there vs cutting into the harness at the factory amp.
     
  10. josby

    josby Senior Member

    Joined:
    Dec 11, 2015
    Posts:
    789
    Thanked:
    478
    Location:
    Central VA
    Car(s):
    2016 Civic Touring sedan, 2008 S2000
    There aren't any connectors on the back of the headunit that run to speakers though.
     
  11. Trey

    Trey R-00621

    Joined:
    Mar 23, 2017
    Posts:
    953
    Thanked:
    1,086
    Location:
    Atlanta, GA
    Car(s):
    2017 CTR #00621
    I just spoke with that Eric guy at JL audio (cool civic hatch) and asked what would happen if we were to plug the SPDIF cable from the Type-R head unit into the JL audio TwK-88 and he said it would work. I'd like to get my hands on one to see what happens!!

    twk-88-foh__57928.1467056919.jpg
    x2_99b69e7c5167319c6bec21475b926f2c.jpg JL-Audio-TWK-88-2.jpg Tune_EQ_Selection.jpg
     
  12. josby

    josby Senior Member

    Joined:
    Dec 11, 2015
    Posts:
    789
    Thanked:
    478
    Location:
    Central VA
    Car(s):
    2016 Civic Touring sedan, 2008 S2000
    As long as the head unit is sending a stereo bitstream on the SPDIF cable, I think it will work. If it's multi-channel, probably not, but I think the multi-channel is being done in the amp, not the HU.

    For me it's too much hassle for too little benefit (and too much loss of functionality) to try, but I'll definitely be curious to see if it works for you.
     
    Trey thanked this.
  13. fahim7755

    fahim7755 New Member

    Joined:
    Jun 24, 2018
    Posts:
    2
    Thanked:
    0
    Location:
    Guelph, ON
    First Name:
    Fahim
    Car(s):
    2018 Honda Civic HB ST
    Would you happen to have the diagram for Sport Touring with premium audio?
     
  14. RallyeX

    RallyeX Senior Member

    Joined:
    Apr 15, 2018
    Posts:
    111
    Thanked:
    55
    Occupation:
    PartsGuy
    Location:
    London, Ontario
    Car(s):
    2018 Civic Sport Hatch
    I just wanna throw out my thanks to this entire thread. You guys helped me install my sub without a hiccup:beer:
     
    Trey thanked this.
  15. Triple_peaz

    Triple_peaz Brother Taresa

    Joined:
    Dec 30, 2018
    Posts:
    216
    Thanked:
    84
    Location:
    Louisiana
    First Name:
    Brandon
    Car(s):
    2019 Honda civic si sedan, 2016 Honda pilot
    I just need to kno which wire is positive and negative for the rear sub, so I can wire my line out converter for amp and subs....
     
Loading...

Share This Page

Loading...