Hi
my car is 1998 AEB non bose system. front door speakers and tweeters rear deck speaker.
does not have rear door peakers. trunk ceiling lacate had 6 CD changer.
recent i bought set of bose speakers and bose Amp. front speakers and tweeters already installed. a few days later i will going to install remain speakers and amp too. but i was wondering i didn't remove yet rear door panel. is my inside rear doors exist speakers harness and speakers hausing? if not how can i modify? and i looked up trunk Amp harness
but i can't find out. if my car does not have amp harness how should i buy? and how can i install it also where is amp harness going to connect? head deck?

anyone know please let me know how can i install amp + where should i buy bose amp wiring harness
thanks