Paddle shifter wiring
 

First....I have a manual, not an auto trans.
Looking to add the left side paddle shifter to be used as a momentary switch to control a clutch release delay system for launch control.
I am wondering if the wiring is still behind the wheel or not.
I do understand I will need a rear cover and the switch or just buy an a/t steering wheel with it all on there.
Anyone done anything like this?