FZRider

You want to find the output lines to the speakers, they should be the color listed above and usually twisted together, cut the lines between the amp and the speakers NOT between the amp and the headunit; then extend them and run them back up the headunit or i believe you can even cut both side and juss jump the amp. So basically their are lines coming from your radio into the amp, then from the amp to the speakers, cut both sides match up the lines and just twist, solder, and tape them together.

If i remember correctly the newer chryslers do not have a standard 12v switched accessory line, the red wire, follow the red wire from the pioneer and circuit city bought harness and see if there is a wire that matches the location on the stock harness side. Im pretty sure there isn't last time i did one i ran an accessory to the cigarette lighter. Do you have access to a test light, or 12 volt multimeter? if yes set it to test for dc voltage, ground the black negative lead (touch it to bare metal on the car), now touch the red positive lead to the red accessory wire from the pioneer radi

If you can also take a picture of the hole your 8in sub came out of, and look on the speaker to check what ohm it is. Measure depth of the speaker too, that JL will definately be an improvement if it will fit and your factory amp can power it; also check if your stock sub location is sealed up nicely, that 8in jl is not a free air sub so it will not sound as well if its in a free air set up. I believe the kicker comp vr series subs are free air compatible an im sure they have an 8in set up, but they have some pretty big magnets and in my opinion the JL brand offers better sound quality

Try hooking up your factory 5.25 to the lines going into your 8in speakers on low volume though, if the 5.25 works then its a safe bet to say its your 8in speaker thats bad; which is what i was thinking when i read your post. If the 5.25 does not work with the 8in speaker lines, then i would hook up the 8in speaker itself to maybe the 3.5in speaker lines or even directly from a line ran from behind your radio that you know is working for sure. Doing the two above will help you eliminate the possibility of it being blown. If the speakers are fine then you should look into continuity wh