So Im a bit confused. Does the extension get plugged into the tuner in the trunk? I was researching and it seems that there is one under the seat as well? Also, are there any instructions on the best way to run the cable as far as hiding them?
You just have to run it behind the glovebox and then under the pillars/carpet to the trunk. From there, connect the other end into the tuner box and you are all set. I don't know of a DIY either but I pretty much played around with running the wire and it wasn't hard at all. Very simple.
If you have any questions, or get stuck on something, let us know.
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