Heat matrix for how well different tracers of AGN activity (x axis) correlate with line ratios from SWAN (y axis). Kendall tau correlation coefficients are shown in each box, and set the color scheme (with blue being highly correlated, red being highly anticorrelated, and yellow showing no correlation). p-values are shown in parentheses below. The strongest correlation for each SWAN line ratio is shown in bold. We consider both the central 0.5 kpc (left), which should contain the observational indicators of the outflow and radio jet, as well as the full field of view (right). Variations in N₂H⁺ emission compared to alternative gas tracers HCN and HCO⁺ are always highly anticorrelated with tracers of AGN activity in the central 0.5 kpc, with the strongest correlation being the Gaussian width of HCN. These correlations weaken when the full field of view is considered, but HCN/CO and HCO⁺/CO correlations with AGN tracers remain strong. This points to AGN feedback (in its many forms) influencing the dense gas ratio throughout the SWAN+VENGA FOV, which in turn is highly correlated with Σ_SFR.