TXCatfish

Anyone know how to wire up for the playback feature? It's currently hooked up without the "blue wire" I believe for the playback feature.

I read I need to run the blue wire from the tach to a on/off toggle switch to a hot wire. Once the toggle switch is on I can press record and get ready to run.

What happens if I leave the toggle switch on and I just use the record/stop on the tach?