NOTE: this is for the 1992 Australian MX83 Grande, there could be differences between models and countries.
t's not so hard, just take your time so as not to break any clips or scratch anything.
Step 1: Remove trim around shifter.
Step 2: Remove trim under instrument cluster.
Step 3: Remove sattelite controls.
Step 4: This comes out as a whole unit.
Step 5: Which is held in place by four 8mm bolts.
Step 6: The headunit is held in here. Most aftermarket headunits will have holes that will line up.
Here are the wiring colour codes:
Power Connections
Constant 12V+: Blue/Yellow
Switched 12V+: Gray
Ground : Brown
Illumination : Green
Antenna Trigger : Black/Red
Front Speakers 5 1/4" Doors
Left Front (+)

ink
Left Front (-) : Purple
Right Front (+) :Light Green
Right Front (-) : Blue
(If front tweeters fitted, colour is the same)
Rear Speakers 6 1/2" Rear Deck
Left Rear (+) :Black
Left Rear (-) : Yellow
Right Rear (+) : Red
Right Rear (-) : White
I can't find the info on how to make the standard elec. ariel work yet.
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