Bear in mind that the stock wiring harness wasn't designed to carry that large of a load, at the least, I would think that you may have to upsize the fuses to a higher amperage.
Here is some more interesting info. on the topic...
Yeah. the fuse must be upgraded as well to avoid any potential hazard.
I thought of sharing this one for those members whom didn't get the opportunity to purchased it from our fellow tone monday who used to sell similar ones.