OP
u said your sub was a d2 which is dual 2ohm voice coilsSorry if I sound like an idiot.. but what do you mean by dual 2 parallel.. ?
your alt will be fine....research the big 3 on under wiring and electrical, and an optima is a 6 cell agm batteryHow can I find out how big my alternator is on my 1996 Jimmy? Will I have to switch my alt if I am running an MTX TA 7801 and a 18" Fi Q ? What do you mean by the Big 3? and what is an optima?