Sounds like it is a single capacitor? If it is, you can just bypass it normally. Make sure that on the bypass capacitor the outer lead is connected to the side between the resistor and the capacitor. (Duelund bypass capacitors have directionality)
From Duelund "The outer lead out, closest to the edge of the capacitor, is connected to the outer foil and as such should be connected to the lowest impedance path to ground, generally the signal output."
Your signal is going out towards the driver, So Negative, to capacitor, to resistor.---> That is the direction of the signal, output is from capacitor to resistor, input is negative to capacitor.
Hope that makes sense.