Hi All.

I am currently in the process of restoring my SW20.

It is a JDM Turbo Hardtop REV1.

I have decided to swap out the JDM radio for the ADM radio.

I have noticed the connector is a completely different style. I have sourced the right loom connector (plastic bit that you plug into the back of the radio) Ebay part pic to be posted.

I have now done some research and called the MR2 knowledge trust in Perth.

After much internet research I have come up with this. Please let me know if you see any glaring mistakes in my wiring 'map'.

This is also a post so in future if some other person decides to do the same it is more straight forward.

UPDATE;

Seems like my misguided attempt to use an AUDM radio was never going to work.

As the radio sends signals for the Premium Sound Amplifier to process my working out was I could use the factory wiring for the speakers.

As it stands I have only used the mains power and ignition power from the factory loom and I tapped into a nearby bolt for the earth.

I will need to run my own wiring for the speakers.
I will probably try and use what is already threaded through the doors and just try and run my own wiring to the rear 'subwoofer'

Thanks to Pete for helping me on this.

You haven't posted an image to check. Most auto stores might be able to help you with a converter plug, should take the time to upgrade to a decent headunit, the stock one isn't fantastic. 

Sorry. Here's the Ebay part (the new part to graft on to the car)

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This is the map I've drawn up. It has what I think I currently have in the car to what I'll need to convert to with my new loom.

I've also attached a screenshot of where I got my info from.

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If you have 2 DIN units of space to fill have you considered fitting a modern head unit?
 
I originally had a radio/cassette player in my '90 model, but who plays tapes (or even CD's) these days.
I have now fitted an Android head unit, that IMO has in some ways moved my car into the 21st century.
7" touch screen, no knobs, multi tasking, link to your mobile, on board GPS, reversing camera, radio, no CD player but why would you want one when you can fit perhaps 50 albums on one USB stick. 
Important!!  There are heaps of these available, and are easy to fit, but you would first need to do some research to get the right one.

Because CDs product much better sound reproduction than what is generally available electronically. I notice the difference immediately listening to the same track CD to edm on the same HU.

Hi Redtarga. I have a modern head unit but will put it in my daily driver. I will have a ramset tablet holder for a gps/internet radio receiver.

Not going to lie. Mad jealous about what you have with your gauges and switches. Looks really good.

with #6 on the GT wiring and the switched 12V-if the factory amp on the LHS is unplugged you wont get 12V on this wire,only works if the harness is still plugged into the amp.if its missing you can jump the grey/red wire to the grey wire on the smaller amp plug (LHS)
 
also for the antenna on premium systems you may need to jump a wire from the green/black wire to the pink/blue wire (at the antenna plug in the boot) to get it to go up and down,pretty sure this needs to be done regardless if the amps there on the premium or super live factory systems as that pink/blue is wired into both amps,the antenna and head unit so if you just wire in the black/red at the dash it usually doesnt work from what ive found
 
 
 
 
 
 
 

 

Blade
Hi Redtarga. I have a modern head unit but will put it in my daily driver. I will have a ramset tablet holder for a gps/internet radio receiver.

Not going to lie. Mad jealous about what you have with your gauges and switches. Looks really good.

I previously had the gauges mounted where the head unit is now, so I had to put them somewhere else, and the spot I now have them seems perfect. They are mounted on a bracket on the side of the transmission tunnel. The pic shows the 2 gauge pod out of the car.
(50 mm plumbing fittings can be used for other things beside plumbing)

I didn't see the point of replacing my OEM cracked ash try lid, so I fitted something more useful.
The switch plate is mounted to the ash tray lower section.

So above is the Ebay part that will need to be grafted on to the car and at the bottom is the original part. There's a difference and then some haha

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