General Module 3 Swap-What Issues to Expect

[Explorerlyon]

I picked up a GM3 from the junkyard for the same year as my vehicle (2003 X5). I realize I "may" have to have the GM3 coded to the car. But, any harm in just plugging it in to see what happens?

I am trying to solve these issues:

1. No interior lights (I have already tried pushing the dome light button, that is not the issue).

2. Remote does not lock/unlock any doors. The central lock button in the car works fine. I have verified that the key remote works properly at a locksmith. The BMW locksmith even coded a new key to the car and it does not lock/unlock the door. So I know the key remote is good.