No you did the cabling correctly.

It's "always on" so that the compass memory does not get reset everytime you turn off your ignition/accessory power source; also useful for keeping your home-link memory settings as well

The mirror will not kill your battery. It takes very very little power.

The auto dim mirror should turn off when the car is turned off, however, the homelink is always on!
Sounds like you should reverse the ignition/battery connections.

yah, i think your accessory is hooked up to the constant. as conchz said above, you need to switch those around.

the auto dim and compass should shut off when the engine is off. the homelink will still be active since it's hooked to constant.

That did it!.

Now i realize the homelink function powers up from the battery and the auto-dim+Compass use the ignition power...

Thanks for the help!.

I didnt get the Homelink programming instructions on my kit; only compass and autodim information was included.

Here are the programming steps taken from HomeLink

1. For first time training, press and hold the two outer HomeLink
   buttons, releasing only when the HomeLink indicator light begins to
   flash after 20 seconds. (Do not perform this step when training the
   additional HomeLink buttons.)
2. Turn your vehicle’s ignition switch to the second (or "accessory") position.
3. Position the gate operator handheld transmitter 1 to 3 inches away
   from the HomeLink surface (located on your visor, overhead console, or
   mirror), keeping the HomeLink indicator light in view.
4. Using both hands, simultaneously press and hold both the desired
   HomeLink button and the gate operator handheld transmitter button.
   Continue to press and hold the HomeLink button while you press and
   re-press ("cycle") your handheld transmitter every two seconds until
   the frequency signal has been learned.
   
   Note: It is advised to unplug the device during the "cycling" process
   to prevent possible motor burn-up.
5. The HomeLink indicator light will flash, first slowly and then
   rapidly. When the indicator light flashes rapidly, both buttons may be
   released. (The rapid flashing light indicates successful programming
   of the new frequency signal.)
6. Now press and hold the programmed HomeLink button and observe the
   indicator light. If the indicator light is solid/continuous,
   programming is complete. If the indicator light blinks rapidly for 2
   seconds and then turns a solid/continuous light, proceed with the
   following rolling code programming instructions.
7. Perform these steps only if your gate does not operate after
   completing Step 6.
   
   At the garage door opener receiver (motorhead unit) in the garage,
   locate the “learn” or “smart” button (usually near where the hanging
   antenna wire is attached to the unit). If there is difficulty
   locating the training button, reference the garage door opener’s
   manual or contact us.
8. Press and release the “learn” or “smart” button (the name and color of
   the button may vary by manufacturer). NOTE: Once the button is
   pressed, there are 30 seconds in which to initiate the next step.
9. Return to the vehicle and firmly press and hold the programmed
   HomeLink button for two seconds and release. Repeat the
   “press/hold/release” sequence up to 3 times to complete the training
   process.

To operate your entry gate using your HomeLink system, simply press
the programmed HomeLink button. Activation will now occur. For
convenience, the gate operator handheld transmitter may also be used
at any time.

HOMELINK programming RANT...
 

OK i had the instructions manual and it's either extremely vague or i'm hitting a language barrier.

Witch buttons does it mean to HOLD when it says "Hold the two outer homelink buttons" ; i assumed if you consider the buttons labeled (homelink . , homelink .. and homelink ...) the center then the (homelink .) and (homelink ...) are the two outer buttons. but if you consider your mirror assembly, then the (homelink .) and homelink ..) are the two outter buttons. However if they consider the whole mirror buttom assembly, including compass and autodim, then the compass and homelink. are the two outter buttons....

Eitherway

I tried holding 25seconds+ onto each of the "two outer buttons" combinations and the mirror LED (the only LED i see on the mirror assembly) never ever blinks. no signs of anything.

that was with the car OFF, On, ignition,etc.

The instructions don't specify witch power state the car should be in, it only says to get the car to ON position after you hold witch ever button combination first....

So incredibly vague.

Either i'm not doing it right or my unit is DOA... i havent for a second seen a response from the buttons to the LED on the mirrror. so incredibly frustrating pieze of equipment.

can Someone ring in on witch specific buttons to hold, witch led should blink if it and witch power state. I'm very technically inclined and it just doesnt make sense to me.

---auto-dim and compass functions work.

if your homelink is brand new you dont need to do that step. it's just to clear any previous memory in there.

Does the green LED on the mirror blinks when you, press, program, etc?
mine never blinks.

A friend of mine has a similar mirror on his hyundai and he tells me his blinks green/red when the buttons are pressed.

yah, mine worked the way the instructions said. was easy boom boom boom and done in like 2min. then drove it around a little and the compass calibrated itself.

Mine either has the Homelink function borken or the RED LED for the Homelink...

Compass works fine.

Autodim works fine.

Just installed mine and I used the same Red 12V+ Constant wire you did.

The ground I tapped into was down into the kick panel and is very obvious.

Instead of the Green 12V+ Ignition wire you used, however, I used an Orange 12V+ Accessory wire found in the middle plug. There's a larger gauge Orange wire in the upper plug, don't use that one. I didn't meter it to know what it does, so don't take the risk.