I'm going to be putting one in my car soon from Bulldog security. They
harness kits to really simplify the process, but it's still a lot of work.
SUPPOSEDLY they have a new system for the latest cars that just 'plugs in'
and uses the vehicle bus/computer for 99% of the work, but I haven't seen
it yet. In any case, it's only for the latest vehicles and only certain
I've also heard they have a 'cell phone' version...
I'd have tackled that job myself a decade or so ago, but I'm not as agile
these days so I'd pay to have it done. My neighbor spent most of a day
putting his in.
When I bought my new car some months back, it was part of the deal to have
them do it.
In any case, it is nice to have a remote in temperature extremes. In
winter, I let it warm up 5 to 10 minutes. In summer, even two minutes rids
that big blast of hot air when you open the door.
The ability to leave the car running with no key in it is hand too, if you
are just running into the store for a coffee. I don't have the factory fob,
but it does have all the functions. Some allow you to turn of the rear
window defroster, heated seats, etc.
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