wireless car steering wheel buttons

[whensparksfly]

Hello everybody I'm a total beginner I am wanting to build a setup that will have buttons on my steering wheel of my car that will wirelessly triger relays to work indicator etc.there is some pcb on ebay etc but unsure of what I need any help would be great thanks

 

[73's de Edd]

If indeed, you are truly [a total beginner] then that will definitely be . . . .when sparks fly.