Quoted from RoyalJack:delt31 & Green-Machine , Godzilla LE will be my 3rd pin. I have a TMNT Premium and had a Mando Premium(Sold recently to fund Godzilla). I've never heard a pin with an external sub. Any recommendations on a solution to get an external sub for my two modern sterns?
I believe the most common is this Polk: https://www.amazon.com/Polk-Audio-PSW10-Powered-Subwoofer/dp/B0002KVQBA/ref=sr_1_2
Occasionally for sale under $100, and can hook up more than one pin if desired (though some games may differ in perfect settings).