Referencing the video in the OP...
The author of that video has suggested putting two (or even possibly three) diodes (rated for the appropriate amperage) in series to the "12v" accessory outlet to drop the voltage a bit.
This would be a much better idea than using some sort of buck convertor, as most of the available buck convertors are of very poor quality.
It wouldn't be difficult at all to buy a 12v plug extension cord and wire a couple of diodes into it.
That's the route I'm going to go when I finally get my Plaid.
The author of that video has suggested putting two (or even possibly three) diodes (rated for the appropriate amperage) in series to the "12v" accessory outlet to drop the voltage a bit.
This would be a much better idea than using some sort of buck convertor, as most of the available buck convertors are of very poor quality.
It wouldn't be difficult at all to buy a 12v plug extension cord and wire a couple of diodes into it.
That's the route I'm going to go when I finally get my Plaid.