You can take it out fairly easily yourself.
Step1: Unhook from battery under the hood (or in trunk?)
Step2: If amp is screwed onto box just unplug all the wires except the wires going to the subs.
Step3: Pull all the wiring out of your vehicle that is run back to the subs.
For the rca and remote wire they will be tired into the back of your stereo. Simply cut the Remote wire (will say like auto antenna or remote on your stereo) be sure to cut the wire with plenty of room to re splice. Forget this step if it has a plug you can easily unplug it.
Place your stereo back in shouldn't have much a problem with this.. it takes a lot more to wire it in than it does to take out.. I have no doubt you can handle this yourself.