I'm working on a whole house FM transmitter project and would like to mount the xmitter in my cupola to get it good and high. So I need to get the audio line out signal from my wiring closet up there.
I'm considering pulling pairs 3&4 off a twisted 4-pair phone cable and using on one line from each for left and right channel, and combining the remaining leads from each pair for ground. The run total run distance would be approx 35'.
Has anyone done something similar? Any thoughts would be greatly appreciated.