GR Yaris armrest hack

This remix uses modified sections of MagnusT's GR Yaris armrest combined with a part from the following item on Aliexpress:

https://www.aliexpress.com/item/1005003102509403.html?spm=a2g0s.12269583.0.0.4a585fe1A2Ql2n

The supplied mount for the above item does fit the AU model Yaris, but it places the armrest too high and it gets in the way of gear changes. It also restricts access to the front cup holder. Despite stories of shocking Aliexpress quality, I was quite impressed with the quality of the lid section and is a good match to the factory seats. The leather pad is also comfortable and not cheap-looking.

I used MagnusT's base and a modified section of his "20mm lower" middle riser (STL provided on this page) to make it 50mm lower that the original.

When fitted, this height makes the armrest low enough not to get in the way of gear changes, but high enough to be comfortable. The whole unit is also completely removable if you so desire, and requires no cutting of seat fabr