The hardest thing about the install is getting the power cable into the engine bay. You need to remove the battery and air box. Getting the cable through the grommet in the firewall is a total c*nt. I ended up putting a tiny piece of pipe over a very thin, long screwdriver and pushing it though, leaving the pipe in the grommet and daylight between the cabin and engine bay. Forget trying it any other way, it will take hours. Once the wire is through you can use a pair of mole grips to pull the pipe out again.