First off, thanks for a great forum, there's a wealth of information to be found on here!
I'd like to try and add my part, which relates to trying to get the mirrors on my SXi changed from manual to electric... (sorry, I seem to have gone on a bit!)
After finding the helpful howto, the first thing I did was to pop the cap off where the mirror adjustment switch goes, only to find it was my lucky day and the L connector was already sitting there
Good to go, I thought, so investigated getting some mirrors. eBay was proving slow at the time, and none of the local breakers had any second hand GM units, so I haggled a guy down on a pair of third party ones. Dropped in to the parts department at a local dealer later that day, and got the order in for a 9226863, since they didn't have any (damn!).
To cut a long story short, I found a mirror adjustment switch in Leamington Spa - so went and got it and the required fuse/relay/clips. (Turns out the gussets that go in the inside were £12.xx each!!)
Tip: the switch in the "9226863" bag is actually labelled "9226861".
So, eager to get on and give it a go, I drove back home and set about fitting the bits and pieces. First problem was that the fuse didn't seem to locate properly in slot #41. Further investigation reveals there aren't even any metal contacts in there! Relay: fine. Gussets: take a tug, and the clips can be quite hard to persuade out of the door (had to destroy one to remove it), but not too bad. Mirror plugs were taped back on the wire with this nasty foam tape stuff (which I guess is to prevent them rattling?!), but again, no big deal.
Got the mirrors wired in, and the switch connected...so now it was the moment of truth: ignition on, and the driver's side mirror moved with presses of the switch. However, nothing from the passenger side of the car. I was a bit stumped at this point, and didn't have my multimeter to hand, so had to re-assemble to manual config.
A week or so later, I got a chance to try again. By pressing the switch in all directions, and monitoring the wires on the back of the L plug, I worked out which ones were the passenger side feeds. Wielding my trusty multimeter, I discovered a break in continuity between the L connector and the passenger mirror plug - that is, none of the wires that were meant to get to the passenger mirror appear to have gotten that far. In addition to this, the heater elements clearly weren't getting any juice - no sign of 12V, and they weren't heating up.
Tip: I believe fuse 41 is to operate the heater element in the mirrors, whereas fuse 15 controls (amongst other things) the actual movement of the mirrors.
That's kinda as far as I get with it...I'm left with a pair of mirrors, and all the switches etc, but no success.
I see three ways to go from here:
1. Run 3 wires from the driver's door, through the car and into the passenger door - and connect it to the plugs at each end...leaving me with directional control, but no heating.
2. Give up and live with what I've got (no hardship, really, in the grand scheme of things!)
3. Ask the fine people of Astra Sport if they've seen this before!
My hypothesis is that while I've got a pair of doors that are wired for electric mirrors, the car itself is missing the wiring...thoughts?