This is a custom workaround, and in order for it to be undertaken, you will need to purchase the individual PCB (holding Tac!t's filter circuitry) that normally fits inside the unit's XLR-3M connector. You can then de-solder the XLR-3M Connbox output cable connection and add the Tac!t.
Product details for this special order are as follows:
Description: Tac!t (PCB Only)
Order Code: 017029
Once purchased, this is a strictly non-return item since it needs to be soldered in place by the customer. For soldering instructions/schematics, please contact a Rycote Technical Specialist here.
Important: The Tac!T PCB only fits inside the Neutrik XX-series of 3-pin XLR connectors.