I put one on my 06 3.0i a couple of months ago . The electrics are plug and play . I installed the 13 pin plug on mine there is an extra wiring harness for it but every thing ,apart from the switched live , is just plug into the loom . The switched live I found in the fuse box on the rear right where there was an empty relay port. Its bumper off and fitting brackets changed to fit the tow bar . Took about 4 hours but fit was perfect . I changed some of the supplied bolts as they looked like they were made of chocolate and would be easily stripped .