I've used Korg Rack tuners for years - just always found a rack setup to be more convenient.
In my rack is an ADA MB-1 bass preamp, a Boss VF-1 FX unit, a Korg Rack tuner fed by fx loop 2 out from the MB-1, and a wireless receiver. Out front, I use a Rolls Midi-Buddy peadl to switch presets on the pre and FX, and I've set one program as a tuner/mute - the tuner is always active, I can look and tweak tuning during a song if I have to, or hit the button to tune silent. No need to walk back to the rack to do it, that's why they make the displays on the rack ones so big.
The only cord I have is the midi cable from the rack to the midi control pedal, and it feeds power too.