I just put a sub in my car about 30 minutes ago.
The first thing you need is a Scosche Level Converter. You can get one of these at walmart for $18. Next you have to splice wires into your rear 6x9's and run them to the Level Converter. IT DOES NOT MATTER WHICH IS POSITIVE AND NEGATIVE! then you just hook up the amp and sub like normal. Except the remote wire. you have to hook this into a fuse. i used the Hvac Ignition one. its located on the right side of the center console. you just stuff the wire in one of the fuse holes and put the fuse back in.
The first thing you need is a Scosche Level Converter. You can get one of these at walmart for $18. Next you have to splice wires into your rear 6x9's and run them to the Level Converter. IT DOES NOT MATTER WHICH IS POSITIVE AND NEGATIVE! then you just hook up the amp and sub like normal. Except the remote wire. you have to hook this into a fuse. i used the Hvac Ignition one. its located on the right side of the center console. you just stuff the wire in one of the fuse holes and put the fuse back in.