Seeing as I got 'stuck' with this little baby, I thought why not... lets see if we cannot get it to work
This is the North American auto dimming compass rear view mirror as fitted to the Allroad. The mirror has six oddly coloured coded wires and with no wiring diagram readily available for the mirror it was time to figure them out with the trusty multi meter and a fire extinguisher close at hand.
Out of the six wires you only need to use 4 of them for switched ignition, earth, +ve feed from the reverse light circuit and +ve feed from the interior light circuit. The last two wires control the exterior auto dimming mirrors which are obviously not used. Earth, switched ignition and interior light circuit +ve are simple enough. The reverse light + feed is taken from the main loom underneath the LH rear seat. All the wires are run up the RH A piller post trim which pulls off and under neath the headlining trim.
When you get to the centre of the headlining you need to drill 4 small holes for the wires to exit the headlining and run down the screen to the mirror. The four wires can be concealed properly by using a shortened conduit from the mirror to the headlining:
Once the wiring is in place remove the old mirror by using a pair of pliers wrapped in cloth on the stem of the old mirror and turn the mirror stem 90 degrees to release it from the screen mirror pad. This takes a lot to turn it!
To fit the new mirror you push it hard against the mirror pad and turn the mirror through 90 degrees to lock it in place. With the mirror on and the wiring covered you'd never know it isn't an OE fitment for the S2!
The compass displays N,NE,E etc in red so matches the illumination well. The auto dim function is turned off when reverse gear is selected so you can see backwards when reversing!! It's a bit gimmicky, but works well, and as I said... I got 'stuck' with it, so why not!!
So there you go, the first 'how-to'. As soon as more are written I'll delete this one!!
Martyn
This is the North American auto dimming compass rear view mirror as fitted to the Allroad. The mirror has six oddly coloured coded wires and with no wiring diagram readily available for the mirror it was time to figure them out with the trusty multi meter and a fire extinguisher close at hand.
Out of the six wires you only need to use 4 of them for switched ignition, earth, +ve feed from the reverse light circuit and +ve feed from the interior light circuit. The last two wires control the exterior auto dimming mirrors which are obviously not used. Earth, switched ignition and interior light circuit +ve are simple enough. The reverse light + feed is taken from the main loom underneath the LH rear seat. All the wires are run up the RH A piller post trim which pulls off and under neath the headlining trim.
When you get to the centre of the headlining you need to drill 4 small holes for the wires to exit the headlining and run down the screen to the mirror. The four wires can be concealed properly by using a shortened conduit from the mirror to the headlining:
Once the wiring is in place remove the old mirror by using a pair of pliers wrapped in cloth on the stem of the old mirror and turn the mirror stem 90 degrees to release it from the screen mirror pad. This takes a lot to turn it!
To fit the new mirror you push it hard against the mirror pad and turn the mirror through 90 degrees to lock it in place. With the mirror on and the wiring covered you'd never know it isn't an OE fitment for the S2!
The compass displays N,NE,E etc in red so matches the illumination well. The auto dim function is turned off when reverse gear is selected so you can see backwards when reversing!! It's a bit gimmicky, but works well, and as I said... I got 'stuck' with it, so why not!!
So there you go, the first 'how-to'. As soon as more are written I'll delete this one!!
Martyn
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