A few weeks back I upgraded the front and 2nd row speakers with JBL 6x9 (front) and 5 1/4 for the 2nd row, the sound is now clearer but still missing bass, so I am planning to install a sub with built in amp, choosing between the JBL SL8 or the Kenwood KSC SW11. Last week end I did the install prep while deciding on the sub, installed the Line converter to RCA Kicker SLOC and the power cable to the battery. I was able to use the grommet at the back of the glove box used for the rear washer hose, it's very hard, I followed a tip from the previous post, where he loosen the clips of the washer hose, then pull out the grommet and cut a hole in the grommet, and insert the 10 gauge wire (these subs only require 12 gauge) far enough so I can reach it from the engine side, before putting it back I put in silicone to seal it. It was also hard to put back the grommet since I can barely reach the hole to put it in. I was planning to take pictures of the grommet but forgot about it, since I am tired and sweating so much (Texas heat). Hoping to install the sub this week end.
I was really hoping this thing would come through since the cabin is so quiet but its really not living up to what I had envisioned. I had a 12' sub and a larger 600 watt amp in my old car, so I knew it was going to be softer than that but this is at least 10 times quieter, almost like I wasted time and money seeing how little difference it made in my drivers chair. 
