There was actually an incident of this some years ago. A pensioner (not the USA, UK, or similar) was declared dead by mistake. So they stopped his payments, went to take his housing away, etc...
He ended up being the most polite thief, just for life necessities.
They eventually tried to arrest him. Except the computer wouldn't accept the entry because dead. Fingerprints were for a dead man.
Couldn't hold a normal court case because dead.
It took like a year to fix, and they decided to drop the charges and stuff because he paid the businesses back when they finally gave him the back money owed.

Autocorrupt: some to somehow

If the aftermarket fob is a cheaper build, one needs to look for a better quality kit. Never had a problem with my fobs.
And yes, the replacement fob did everything.

With lead-acid and extended run times, volume starts mattering again. Especially if one is trying to retrofit cell towers that might not have had significant UPS capability before.

In addition, the lead-acid batteries in this use can last for a long time, and perhaps more importantly, the UPS equipment is set up for lead-acid. It's cheaper to replace the lead-acid batteries than it is to switch to a newer chemistry, even if LFP is getting down to lead-acid prices per kWh.

For a NEW install, I'd very much look at newer chemistries. Though NMC would be low on the consideration list. As you said, need durability not low mass/volume, and lower cost is always good.

I had an aftermarket remote starter in my truck, professionally installed, no problems with it for a decade.
They did hook it up, it replaced my original remote, so I didn't have to carry both.

I remember that, but things have improved a lot. A cell tower only takes 1-8kW, and we have drastically better batteries.
Plus, a lot fewer land lines, so need to keep the towers up for emergency services.

It's clear you've not driven something like that are are just doing the 'ol slashdot "I can figure this out from first principles".

You're not gonna see what's to either side of you when you're parked in between two other trucks or SUVs. When you're backing 8 foot of bed and 4 feet of back seat out of a parking spot before your head is in a position to see LEFT AND RIGHT you're just hoping nobody is coming/somebody sees you.

If I had the points, I'm not sure whether I'd mod you insightful or funny. I certainly laughed at it.
I also just replaced the starter in mom's 2005 Saturn Vue due to the relay going bad.
I'm not sure how that thing would start a fire, there's only 2 wires to it, unless the starter itself was bad.

Aftermarket power steering, that's a *shudder* from me.

I'm also very curious as to how one ends up with a separate fob for the starter, even in an ICE vehicle. Maybe fluffer is talking about a different part than what I'm thinking about?

Fluffer - to most of us, the starter is the electric motor that turns the engine in order to start the engine. It generally has a relay to signal time to start, and a wire directly from the battery to provide the amperage necessary to turn everything. Were you thinking of something different? I'm not aware of any starters that have anything really remote.

Unless the thinking is having a different fob for the car doors and operating the vehicle, like how early cars would have different keys for the doors and the starter, because they hadn't thought to match the two up yet, or that was considered too expensive.