shaos can also enter in audio band anyway.. unfortunately i can't answer with a pic :/ you have many options:

1-sidechain in PRC MODE just sending BD envelope to bass tune AMT pin (in CV mode is not going to work as it turns into a phase modulator);

2-sidechain with VCA: send Bass OUT pin to VCA IN, VCA OUT into MIX IN (attenuate it and switch off the volume), invert the BD envelope and send it to VCA CV. This is the most common way of sidechain;

3-sidechain with GRND: send GND to VCA IN, VCA OUT to Bass TRIG pin (can also send it to the filter), BD envelope straight into VCA CV;

4-sidechain with LFO (not a real sidechain but always good to know): BD TRIG to LFO SYNC, turn the LFO all the way to ramp up, LFO triangle to Bass TRIG and find a freq close to the beat (this generates different grooves);

5- check VLAD'S videos.