okay i just got 1 10" rockford sub and a amp that goes with it for xmas, tmro im gunna buy another 10" rockford sub cuz i no 1 wont cut it. and what kinda wiring harness am i going to need? 350 watt 1 and do i need to get 2 or is 1 good enought to handle 2 subs? heres the description:

Amp: Rockford P2002amp mono
Specifications: 52 x2 @ 4ohms
100 x2 @ 2ohms
200 x1 @ 4ohms

50 rms - 2200 total rms watts

Sub: 10" stage 1
4ohms SVC sub
150 rms
300 watt peak

Are you talking about the power line you need to run to the trunk? With that setup, you won't need a very thick wire. Just stay away from the cheap 10awg kits.

I would recomend running 4AWG wire for power, look into the wireing kits, they come with everything you need for a starter system

I have one rockford P2 and a total mobil audio 400 watt amp and that sounds good i think if your listening to rap i have the bass turned down to 0 and then the subwoofer setting on 0 but i tuned the amp. and it could still wrattle everything i need to get dynamat the way i ran my wires i have 8ga rockford wire and i ran that on the pass side and then the rca and the rem wires on the drivers side i think you could run your 350 watt amp you just need to tune your amp but if you decide to get another sub you will have to get another amp to go along with that.