Guys I have a 2006 silverado with the bose system in it. I have already had an aftermarket hu installed and replaced all the door speakers and it sounds like crap. Now I would like to disconnect the bose amp and add a 4 channel amp to run my door speakers to get better quality sound or even disconnect it and run the speakers to the head unit. Can anyone walk me through the process of disconnecting the factory amp and installing an aftermarket amp. Thanks for the help.