Ignition switch on my 30

[CT Jack]

I personally do not recommend attaching accessories to the ignition circuit. The reason being that if an accessory electrically malfunctions intermittently or completely it could also affect the ignition circuit. As indicated, the switch you are using is a basic single pole on-off which is the type I have in my A. I would use a simple single throw multiple pole toggle or rotary switch to power accessories. I have an accessory toggle light switch hidden behind the left side of the dash panel.