Imagine I have a car bought with no extras. And imagine my friend has the same model but with all extras (e.g. a steering wheel with built-in controls, or a electric seat, etc.). Now imagine his car broke but the said extras are still working. Under what conditions is it possible to upgrade my car? I notice that the fuse box for example has all slots for the extras empty. If I install a fuse and connect the component wires in the same way I find it on the other car will it work? Have you ever heard of someone doing this?
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1This is a rather broad... If you could come up with a specific scenario, we would have higher chances of being able to answer.– anonymous2Nov 25, 2016 at 18:57
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In concept, the answer is "probably" but in practice it will range from dead simple to nearly impossible (or impractical). For example, consider a car that had optional ABS, but your's doesn't have ABS. You'd need to add wheel sensors, the ABS pump, ABS controls/indicators, possible a new master cylinder and all of the connecting bits. There might be software mods or computer upgrades you'd need as well. As a general question this is probably too broad, but if you can be more specific then you might be able to get a good answer.– dluNov 25, 2016 at 19:54
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Actually I wanted to ask the broad question. The answers here were much informative in the sense that they indicated that it totally depends on the maker, model and extra in consideration.– gotaDec 1, 2016 at 18:27
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2 Answers
Retrofitting options on most vehicles will require you to check for both the fuse and whether the vehicle is "prewired" for the option. The ease with which you can wire in options on a vehicle not prewired for options differs from manufacturer to manufacturer. What vehicle are you considering modifying?
It completely depends on what model and year of vehicle.
In most modern cars each module such as the BCM, Instrument Cluster, Radio, Indicator stalk etc etc, is preprogrammed. In some cases this can be changed through diagnostic equipment but in some cases such as Landrover, Vauxhall and others it cannot. You would need to find an experienced auto electrician to remove the memory from the effected ECUs/Modules and manually change the contents of the memory.
Wiring should be relatively straight forward to an experienced technician. It will probably involve inserting some pins into electrical multi-plugs. But if you have the donor vehicle you can just follow that.
Although it could be a lot easier or a lot harder than this as you haven't specified any info about your vehicle.
