So I installed a 350 watt Infiniti Kappa sub with an mtx audio amp, and it worked amazing. I was very pleased. Now I drove it twice, bumping along. But when I went out for the third time I had no bass. I checked all connections and fuses and it's fine, the amp just won't turn on. I checked with a DMM and have 13 volts across ground and positive and 9 volts on remote turn on. Dead amp you say? No. I brought it inside and hooked it up to an Xbox power supply and it works fine. I'm really stumped guys any help would be amazing