Hi Amy,
The Sensory Percussion sensors need phantom power to operate, so they each need a phantom-powered mic pre. Only XLR carries phantom power, so you can’t use a cable that is XLR to 1/4". Only XLR-to-XLR will work. If you’re set on using those line ins, you could try getting an external phantom power box that goes in between.
Hope that helps!
Tenoch