Any Installation is done at your own risk. You are responsible for anything that happens.
Tools you'll need

Philips screw driver(2 size prefer)
Fine tip solder gun(2 solder gun makes it easier), 15/30w from Radioshack works good
Silver type solder and two steady hand =)

 

 
Remove the shifter plastic cover
It just lifts up with a slight snap
I just pull it out a little for clearance
Just take those two screw out and pull the AC control knobs like shown on next step
Just take those two screw out too
Lift from the bottom and pull it out towards you
Use 10 or 11mm bolt socket
Kind of tricky but use flat head screw driver
Lift the tap and pull it out some how =P
This is what you get when you take the front panel off
Unscrew all the screws
This is how it looks after front panel is off
You need to remove the LCD panel
Bend the metal tabs on those red circle
With the solder gun, melt the tip on the red triangle and the LCD panel will slide out
Important when soldering LED
Make sure it's installed in right way, it only work in one direction.
Each LED has marking called anode, which tells electricity flow(don't need to know this)
It's either "T" on the back or some kind of color on one side.
Example for left picture you would install "T"  going to the right and for right picture you would install "T" going down
Or if it has some color marking, for the left picture it would towards right and for right picture, the marking would towards bottom.
To make it simple just install other way if doesn't work
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