What are the best settings to use on a bass amp when connecting a guitar through it?

When connecting a guitar to a bass amp, it's best to start with the bass amp settings at a neutral position. This typically means setting the EQ knobs (bass, mid, treble) at 12 o'clock or halfway. Adjust the settings based on your preference and the sound you want to achieve. Experiment with the settings to find the best sound for your guitar.