Illuminated Scuff Plates

One proven way I found with past vehicles was to call up the dealership and ask to speak with someone in the parts department.
often they're able pull up diagrams and tell you how certain things are installed.

I don't know if this is the case on these sills, but a lot of aftermarket sets actually use a a magnetic control switch for operation. That means its entirely wireless and simply needs to be fitted.

I am finally getting a set of these installed.

They need to be wired into the loom, hence, I am paying my dealer to do the job.

Mitsubishi list the time to install as one hour, seems excessive?

They are expensive, however, there are no after market LED ones available yet.

That's a shame that they have to be directly wired in, and an hour does seem like a long time. Better safe then sorry when it comes to electrical though. Would love to see em once you get them installed.

I forgot to add that it took the dealer 1.5 hours to install the plates.

As with all accessories, I'm sure there's a factory harness clip you'll connect to. Else instructions will include them. All genuine accessories come with instructions and harnesses, including any taps needed to do the job.