I think many professional electrician guys would probably scared to mess with the BMW's engine system, plus if it would require another extra key to be placed permanently inside the vehicle, in order for the system to work. Due to the extra cost to own another key, I think this is why most BMW's owner wouldn't even try it. Otherwise I wonder what could be such difficult with BMW's starting system to not able to upgrade such an amazing option like that.

Once again! there's a guy that selling his 2003 BMW X5 on ebay and he claimed having the system pictured above on it.

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