I found it easy to wire in, but i have a fairly decent grasp of car electrics and all the wiring diagrams to hand.
I know others have tried and struggled, but i'd think it shouldnt be too difficult to get the basics working.
The keys can be tricky, and theres two things you need to do. You need to get the blade cut to match the car, which you can get a locksmith to do, or even your local supermarket key maker, that said, the two local places i tried couldnt do it, as the copy key wouldnt stay clamped in their vice properly.
I ended up sending mine to a bloke that advertises on ebay, who cut them from a photo of the original key.
You then need to transfer the immobiliser chip from your original key to the new fob. This bit requires some fiddling, as the chip is glued into the original key. I used a stanley knife to carefully slice away the plastic around the chip until i could release it from the glue.
