Ill chime in for the wiring part.
there are 4 wires on the plug to the clock, on teh back of the stock clock thing, you will see what each of the 4 wires is. Use this as reference when looking at the 4 wires on the harness.
in this order:
If you want to hardwire this to light up when you turn the key on, then cut the lighter plug off the end of the dc wire, trim back some insulation from the 2 wires, and split them about 1/2 inch or so into rabbit ears.
There is one wire with a blatantly obvious white stripe, this is your "hot" wire. You ned to mash this one into the receptacle on the plug for #4 Accessory.
The other wire may or may not have a thin grey stripe, this is your ground. You need to mash this one into the receptacle on the plug for #2 Ground.
Feel free to tape it up so the wires dont come loose, but i wouldnt worry about soldering or wiretapping for this project, the insulation was thick enough to hold snug in the plug on my install, should be for yours too.
Test if it works, turn your key to accessory or on, and if wored right, youll see the bright green light pop up.
Oh and dont forget to install a pair of AAA batteries so your clock doesnt reset each time you turn your car off.....
Also: as far as mounting it, i used industrial grade double sided tape (the kind that has a clear red backer and comes on a roll like masking tape) rand a thin doubled up line of it around the opening and stuck the clock straight to that, then for added measure ran some extra tape around the clock vertically to hold it tight (anyone doing this should understand this comment)
WOO HOO for the sticky, this ones definitely a keeper.