electric folding mirrors, alarm, 98 impreza

To fold the mirrors, you have to know what the switch is doing, in otherwords fold the mirrors with a meter at the back of the switch. You will probably find that 1 wire goes to ground whilst another goes live while the switch is pushed, reverse those wires for the other direction, so you need one relay as an  interrupt circuit, drive off one of your aux outlets set to timed on arming.  On disarm power a 508d with an acc feed  set for the number of secs it takes to open the mirrors, then they will automatically open on starting the car, but you have to work out what the switch is doing.

No point til you tell me about the switch.

You would need to wire an aux from the alarm setting it to activate for about 5 seconds timed (or however long it takes the mirrors to fold in + 1 sec.) Find the wire that goes pos at the switch on folding the mirrors, cut it,  now take that wire and cut it. join the switch side to 87a on a relay, join the  mirrors side to 30 your aux wire to 85, join a constant 12v+ fused at 10amps to 87 and and 86. That takes care of the fold in. To fold out 2 methods. 1) Set up another aux wire, timed for the same time to activate on disarm,  use the wire from the mirror switch and wire up to another relay in exactly the same way. 2) Take a feed from the ignition circuit, use a 508d and cut the blue loop. Take the ignition wire to BLACK/ white on 508d, yellow  and red on 508d to same fuse as before (iether way only one fuse is needed) cut the wire that goes live on fold out, switch side to orange on 508d and mirrors side to brown. job done.

To close the mirrors on ignition shutdown you would need a second 508d, wired as before except don't cut the blue loop wire this time and sustitute the fold in + wire for the fold out as above. Set the timer pot on the 508d again for what you worked out originally.

How'd you work out that 508d method howard?

I did mirror folds a couple times, the ones i'm accustomed to are reversing polarity, i use five relays in total, i extend the pulse on the lock and unlock wires to 3.5 seconds (DEI) and trigger the relays with this, the fifth relay separates the constant feed to the relays with an igntion source, to prevent the mirrors from folding in with the ignition controlled door lock!