Window Roll Down Module???

Just bought two modules, one for up and one for down.  It says it only works for rolling up, but i think if i hook the module up the same way as the up, but hook it in series with the roll down wire, it will work???

But this module needs two inputs, one is the "negative activation input" and one is from the "starter kill relay".  So on the roll up part, i will hook the negative activation to the lock output from alarm, and starter kill relay to #30 off of the relay. 

But how do i hook this up for the roll down??  What do i use as my inputs??  Can i run both inputs off of my auxillary out, which is negative and works off button 2 of my remote??  its a clifford polaris 2 alarm. 

Thanks for your help!

What I do most of the time is have the rol up activation off the arming of the alarm and the roll down is off an EXT button.