its pretty straight forward retard, and if your buddy's a good friend he should just do it for you and you can watch him and learn
Douchebag #1
your are asking for "help" like an idiot...
what are you going to be taught?
how to use a drill? solder?
Douchebag #2
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Congratz to both you retards and idiots. You don't just go out and start working on your car because there may be certain things or complications that you can avoid by asking others first. The guy is a noob to installing and knows it so he comes to a place to get information, but you call him an idiot and a retard for doing so, now that is just plain stupid. I understand you learn by making mistakes, but you can also learn by getting information from others and following steps/guides and then doing it...it would be much easier.
To the OP, I would do as Californiaboy said, just take off the screws, look very carefully on the face of the panel, the sides, and the bottom. You will have to give a somewhat good tug for the panel to come off, because most likely it is being held in place by clips as well. Don't force anything if you don't think it will work.
Another thing you can do is search for a forum for your vehicle and make a post asking if anybody knows specifically how to take off the panels from the same vehicle you have.
It is a bit tough at first, but once you get the hang of it and after doing it once, its easy the following times around.
Decide where you are going to mount your crossovers. What you can do is see how your sub amp is connected. Follow the wiring route for that for the second amp. All you have to do for installation of another amp is get a ground distribution block for the ground and another distribution block for your power. You can also split your remote wire in two and run the second split wire to the 2nd amp. Only thing you will need to do now is run your RCA's. Just run them and follow the RCA's for the 1st amp, and you can follow these wires pretty much for the speaker wires. If the crossover will be mounted in the doors, you will have to run your speakers through the grommet on the doors. Make sure you have enough slack when opening and closing. Also, when mounting the speakers, make sure the windows are down so you know you have enough room for depth. Make sure that the wires connecting to the speakers don't get in the way of the window either. Check your installation or owners manual for how to wire the components properly. Hope this info helps.