I recently installed a sub and amp into my sister's car, its a 2002 Chevy blazer it has a stock stereo. I installed a line output converter because there were no RCA connections and I wired the remote wire to a wire that said it was 12v on a website's wiring diagram (I can post it if needed)...
Backround info:
I have One Alpine Type R 12 in SWR-1222D (2ohm)
and One Eclipse XA 1200 amp powering it.
Bought these about 9 months ago and made a Custom ported Sub box for the setup.
The dimensions of my box are 11.5x16.5x24in tuned to 34hz With a port hole 2in diameter and 2.75in long...