Whats the easiest way to hook subs up to the factory radio, (if the factory radio is not amplified) without ripping the radio out? can i tap into the rear speaker wires comming from the radio and run them to the amp? if so this will give me what i need to run the subs but what about the rear speakers? can you jump the wire to where the rear speakers will work un amplified and subs amplified? sorry if it sounds kinda out there but im trying to easily add a few subs to my new ride without any major modifications right now? be nice if i could just add amp and box and go with it?
thanks in advance

you dont hook up subs to factory radios in our cars. buy a deck with sub outs, amps install kit, sub/subs in a box, amp, wire all that in, get it tuned and have fun

You can hook up subs with a line output converter and run the remote wire from the fuse box. Then its as simple as running a power wire and connecting the rca from the line output converter to the input on the amp. Really not that hard.

is this for the 2007 car or a 2gnt cause if it is for the 07 you can do it off the factory cause they have run the wires for a sub even if you didn't get the option