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93 Civic HB SI
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Since you're going to run the head unit speaker outputs to an amp of some kind, you could probably throw a switch between the speaker circuit up near the deck/head unit, to give you the ability to choose what feeds the amp.

Switch one way, and the factory head unit would feed the amp input... switch the other way, and you could have some kind of Bluetooth device that already has a small preamp built in to feed the amp.

Nice thing with Bluetooth stuff, is that volume control can be handled remotely, so your volume buttons on your phone could manage the output level to the amp, which would give you volume control :)

Then when you're not using Bluetooth, flip a switch and the factory head unit feeds the amp again.
 

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89 EF 4wd sedan
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815 Posts
Discussion Starter · #43 · (Edited)
That's the type of device i'm looking at but that's for newer head units with a harness plug connecting the head unit to the CD player, this uses a DIN connector which i haven't been able to find yet. Maybe i'll buy one of those for my EK though haha.

138039


You remove the block off cap to the left for CD player/equalizer and there's a din connector underneath (looks something like this but i can't remember the pin count):

138040


Since you're going to run the head unit speaker outputs to an amp of some kind, you could probably throw a switch between the speaker circuit up near the deck/head unit, to give you the ability to choose what feeds the amp.

Switch one way, and the factory head unit would feed the amp input... switch the other way, and you could have some kind of Bluetooth device that already has a small preamp built in to feed the amp.

Nice thing with Bluetooth stuff, is that volume control can be handled remotely, so your volume buttons on your phone could manage the output level to the amp, which would give you volume control :)

Then when you're not using Bluetooth, flip a switch and the factory head unit feeds the amp again.
That's an idea!

I received my wiring diagrams a couple of days back too, so went through and worked out the pinouts for swapping the door plugs on the concerto cabin harness with the wagon plugs:



EDIT:

Just found this:


Fark 137£ +35 shipping ... It'd wanna work
 

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93 4d lx, z6,ported, port matched, compression bumped, balanced, manual swap
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386 Posts
Place called radio shack here in the states used to have a din to dual rca adapter that was reconfigurable to work with most stock stereos, and some aftermarket, for use as an input. But it seems they cut a ton of stuff like that out of their catalog when they downsized a while back.
 

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89 EF 4wd sedan
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815 Posts
Discussion Starter · #45 ·
Slowly making my way through the harness changes i need to make. Swapped the door plugs over and jumped the auto harness neutral safety. Still have to add the reverse light wiring and swap a couple more plugs over...zzz



Checkout how thick the Concerto loom (bottom) is compared to the wagon loom (above it) lol.
 

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89 EF 4wd sedan
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815 Posts
Discussion Starter · #47 ·
Worst part of car builds, the wiring. Keep going mate!
Actually i don't mind it so much, but it is super time consuming. I got most of the cabin harness complete now. I also added in the wiring for the headlight washer system which i had removed from my sedan harness a few years back when i did the 'ef9' front end (and liked the look of it without the washers) so ive decided to install on the wago instead for those authentic RTi model feels. There's a few things that need to be upgraded to fit the headlight washer system:

The dash harness plug moved to a 16 pin plug to fit the switch wiring:



The auxiliary fuse holder moves to a 5 slot holder for the pumps power source:



Switch wired in to the dash loom, also the cluster pinouts needed to be changed, the Concerto cluster plugs are the same, but all the pins needed to move:



Riveting stuff.
 

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89 EF 4wd sedan
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815 Posts
Discussion Starter · #51 ·
Decent weekend on the wago. Got the headlight washers installed on the bumper:





Got the OEM driveshafts rebuilt:



Wasted a whole bunch of time installing facelift headlights/park lights and mocking up the bumper with a new lip i bought:



Finally stopped procrastinating and started ripping into the DA tank. I needed to salvage the stud ring that you bolt the EFI fuel pump hanger assembly to, and i needed to cut it open to remove the factory baffle:



I'd filled the bottom of the tank with water while i was cutting it, I figured if it blew up in my face at least it would self extinguish that way lol. My partner came down after i'd cut it open and was like omg is that fuel still in it?!

yoink:



Mocked up on the wago tank:





I've gotta wait until the fuel pump hanger arrives before i can figure out where abouts this will need to sit in the tank.
 

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89 EF 4wd sedan
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Discussion Starter · #55 ·
Couldn't believe, got bed ridden by a stomach bug on Friday arvo, pretty much ruined my whole weekend.

Managed to keep food down long enough to figure out that the front discs are close to being outside of spec limits (17.4mm measured against 17mm spec limit) - so i'll have to buy new discs.



Also figured i'd punch the fuel pump hanger hole in the fuel tank with any luck it'd put me out of my misery:





Survived another round though so resprayed my booster which the paint was lifting off because of a leaky master:



Also stared fabbing a fuel filter bracket for the firewall but ended up going back to bed. Zzz
 

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93 Civic HB SI
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Couldn't believe, got bed ridden by a stomach bug on Friday arvo, pretty much ruined my whole weekend.

Managed to keep food down long enough to figure out that the front discs are close to being outside of spec limits (17.4mm measured against 17mm spec limit) - so i'll have to buy new discs.



Also figured i'd punch the fuel pump hanger hole in the fuel tank with any luck it'd put me out of my misery:





Survived another round though so resprayed my booster which the paint was lifting off because of a leaky master:



Also stared fabbing a fuel filter bracket for the firewall but ended up going back to bed. Zzz
Feel better dude, we need more civic porn from the southern hemisphere :)
 

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89 EF 4wd sedan
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815 Posts
Discussion Starter · #58 ·
I noticed my prop valve had been leaking, has anyone ever successfully rebuilt ones of these before? All my Honda workshop manuals say DO NOT OPEN which is a bit disconcerting.

So naturally, i opened it. I can't see any reason why the seal can't just be replaced. So i put a fresh EPDM seal in there (brake fluid compatible), sand blasted/repainted the mounting bracket that was ruined and put it back together:





If anyone has any info as to why that shouldn't have been done, please let me know.

Also had to replace a torn ball joint boot



I'm just waiting on some new discs and pads to arrive and i can put the front wheel hub assemblies back in the car.

I also settled on a bluetooth thingo, i think it's going to be possible to wire it to the 'TAPE' button function on this head unit which should be cool. Also these are the speakers and amp i've settled on:

Amp:


Speakers:


Still undecided on whether i want to put in a sub. I really liked the idea of the under floor spare tyre subs like this:


But i measured it up and i don't think it'll fit under the boot floor properly. I could probably fit a slimline one under the drivers seat... But i dunno if they're any good or worth the money.
 

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BATSLOMAN GIVES NO FUCKS.
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what about the rubber plug in the bottom half? did you replace that whilst you were there?
 
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