Avoiding fires after acquiring a used e53 ?

[Factory6speed]

As an E36 owner, I'm a little familiar with the topic of electrical fires happening spontaneously in older BMWs. Thankfully not yet totally familiar. I did have to fix the trunk wiring harness the first couple days I had the car.

This is an important topic, as there may be some newer owners, myself included, that don't really know about this, and what issues the e53 might have. This hasn't been discussed in quite a few years as far as I can find.

Yesterday there was a video in my suggestions with someone breaking down the E46 electrical fire issue with the light switch component. The circuitry in there can get corroded, possibly from clogged sunroof drains, and since it's constantly powered, it will heat up and burn the car down.

I don't know if the light switch issue is relevant to e53, but very possible, I'm going to go pull that thing out and have a look at it.

I did some reading here last night and found a small number of posts of people that have suffered spontaneous fire. There seems to be something that happens in the glove box area. One person said it's probably from the FSR module, but I don't know what that is?

I have had a bunch of water through the glovebox from the sunroof drains, and I have gotten a burning smell over there a couple times briefly while driving.

This car has an aftermarket radio, I have to assume installed incorrectly by someone not qualified. As soon as I get out of work I'm going to check every single fuse and make sure they're the correct amperage. I should have did this the first night I had the car in the garage, over a year ago.

So does anybody know what issues the e53 has, regarding fires and what else we can go check, regularly, to avoid the unthinkable. It sucks to talk about this but it is important. Thanks