Here are their basic instructions. While the instructions are for an '05 it is very similar to my '09 - just had to use a test light to make sure I had the correct high beam wire to connect the splice.

http://www.mrtaillight.com/product_i...82b80f3d8e566a

 

We did my father in law's 09 with no issues. If you are doing HIDs, I think that is probably a whole different animal. You can always contact the seller, from what I remember they were real decent to work with.

 

Simple relay is all you need

 

Post #6 of this thread has a link that I posted...click on it and read that thread...the diagram is in there

 

thanks for the replies guys, i had a busy weekend haven't been on here in a few days. plus it was 95* here in San Diego so i didn't really want to be stuck in a hot car poking wires. i still haven't read through the thread that 88racing posted but i will check it out on my lunch break today. and ill contact the eBay seller about the harness. i just hope its not too hot this weekend so i can do some research under the dash.