Listed here is a machined aluminum electrical fitting and boot specifically designed for the Tamiya Ferrari 641/2 in 1/12 scale.

A total of 24 fittings and 33 boots are supplied to cover those found around the mechanics of the car and to replace fittings located on kit computers #R43 and #R44.  All fittings are machined aluminum, lightly knurled and anodized a light gold color where necessary. All boots supplied are also machined aluminum, specifically shape designed for their application (like the larger ones found on the computers) and anodized black in color.  All fittings are machined with bores to accept required boots. All boots are machined with a mounting pin for installation into fittings and a bore for the wire.

Computer boots will accept wire diameters of .025" and .030" (.63mm and .76mm).  The Inline fitting boots will accept wire diameters of .011" and .020" (.28mm and ..51mm).  Instructions for part locations are re-drawn instruction pages from the kit (sorry, could not get permission for use of pics from various sources) and give a general location for installation. You will have to use photo images from the Web / Internet, or your own archives, for precise locations if you find included instructions vague. Instructions are also based on the Tamiya 641/2 model version. I have seen variants of this car on the web (one with the computers mounted sideways for example) so builds may be slightly different all though, i believe, the fittings are the same and you must use your best judgement on placement of supplied fittings and boots.