Chris's new build of an MX5 based car

[Stot]

You need a tell tale or the instruments to light up with side light, most do. IVA Manual refers to them as Front and Rear Position Lamps in section 22.

The tell tale must operate with the operation of the position lamp switch, it may be the illumination of the instruments or a separate lamp of any colour (providing it is not likely to confuse the driver) clearly identified in either a pictogram (see section 33) or in a word format.

Cheers
Stot