433MHz RF Kill Switch, Any Ideas

[Jay11]

1998 XLT Automatic 70k miles,

I have not seen much or any installs of a 433 MHz RF kill switch other than physical Toggle Switches. This is the set up I am preferring-it eliminates a physical TS that may or not be discovered and use of a key fob to arm/disarm the wireless switch is naturally seamless to a DD activities.

Suggestions I have seen is to just install a TS inline with to Inertia Switch. I am not an electrician but a weekend afternoon under the tree DIY'er. I am comfortable following pro's instructions. Looking at the IS the wires are the thin types which makes me think a 30 amp switch is not required for this setup, since you are not switching the fuel pump itself directly, but a simple Toggle switch, is that correct?

The RF switch I am eyeing is 12v 10 amps. Is this sufficient while maintaining safety, basically not introducing a fire hazard?

ADDING INTERESTING TWIST,
How can you wire this in a way that the horn blares with every cranking attempt if the RF Fob was not used to enable the kill switch?

433 Mhz Wireless Switch -> here.

 

[Curious Hound]

The drawing I just looked at showed the inertia switch in series with the fuel pump. To keep current lower for your electronic device, it would work better in series with the coil for the fuel pump relay.