Relay resistance when using joycon question
I'm taking the signal from the steering wheel and going through a relay and switch so im able to change the destination of the signal from either the head unit or the computer. I got the joycon, but before cutting up wires it occurred to me....maybe paranoia....that I may alter the resistance to the head unit by going through a relay. And once that happens I won't have control of the head unit anymore.
Will my fear happen? The relay I plan on getting is:
(There is something else I need to control through this process, that's why it's a multipoint relay)
If the resistance does change, will a variable resister like the following help in bringing the resistance back to what it should be?