I'll try to get you pics within the next week. What I did was remove the sub completely to get to the wires.
1. remove rear spare tire cover out of vehicle, open it up and pull back and set it somewhere so it doesn't get screwed up
2. unplug cable going to sub amp.
3. remove 4 nuts holding the sub enclosure in
4. once I got the sub enclosure removed I unscrewed the dual voice coil "sub" lol it's 5.25" and unscrewed the stock 100W amp
5. since the sub is dual voice coil it's got 4 wires coming out of the amp to the speaker 2 + and 2 -, I made note from the speaker which wires were positive and which were negative, the positive has a bigger connector to the speaker than the negative in case you forget after you reinstall everything. I unplugged the speaker wires off the sub, reinstalled the sub and re-routed the 4 wires under the stock 100W amp so they come out the front of the sub enclosure then reinstalled the amp (note: out of the 4 wires the 2+ are connected together at the speaker and the 2- are connected at the speaker)
6. now you can do one of two things, the best way is to buy a PAC Audio Part Number: SNI-35, http://www.pac-audio.com/products/products...ng-An-Amplifier , it's got 4 wires coming out of it, actually 6 but you don't use the two brown wires, it's got 2 positive and 2 negative wires. All you do is run the two positive wires to the positive wires you removed from the sub and the two negative wires to the other two negatives. Alternatively if you want to be cheap you can take rca's cut the ends off and run the positive's together (center pin) and the negatives togeter, you'd want to run both positives to the positive wires you removed from the sub and both the negatives (outside wires on rca) to the negative wires you removed from the sub I don't recommend this way but it can be done.
6a. A side note that I'd like to add is run the wires one for one, what I mean by this is you have two positivies from the stock amp so run one positive wire from the PAC to one positive wire from the stock amp and run the other positive from the PAC to the other positive wire coming from the stock amp, this will give you the best sound.
7. On the PAC it has sensitivity settings for signal, I turned mine all the way up so it picks up nearly all the signal. If you install it and forget to turn up the sensitivity you might think you hooked something up incorrectly.
8. Now you run your two RCA's from the PAC box and route them to your amp. You have to run your amp power wires up to the battery under the seat. I used a fused line and connected it to the big positive wire coming off the battery near where the fuses are.
9. I have a JL Audio 250/1 so I have signal sensing on my amp so I didn't have to run a remote turn on, if you need a remote turn on find something that's 12v switched that doesn't have constant 12v till you turn the key. Again, you'd have to search for the best spot to get the 12v switched wire because I don't have spot to tell you to run from.
That's pretty much the install or the dirty of it, again I'll try to get pics within the week of the sub since I need to clean up the installation a little bit anyway it was late so I kind of threw it all together to just make it work