


Is this really a speaker amp?
Having some issues getting infinity tweeters to work in my '12 JSW. I was under the impression this car did not have the fender audio system so I went ahead and installed a alpine 4 channel amp for the door speakers and a monoblock amp to run an old alpine type r i had sitting around.
Much to my surprise everything worked the first go around but I found that the door speakers were holding back the amp so I bought kicker door speakers and installed them. Oddly enough they didnt sound much better and slightly more tin can toned than the factory paper speakers but they improved with time
Today I started installing the infinity tweeters. They came with their own inline crossover to tie into the midrange speaker and upon trying them no sound was coming from the midrange or the tweeter.
Did a resistance test and continuity test on both speakers and everything checks out. Looking at that strange triangle pictured I figured it was some kind of factory crossover for the front doors' woofer/midrange/tweeter but Google describes it as an amp? How could it have worked with the door speakers and factory tweeters beforehand?
Im puzzled and about to take it to a pro shop tomorrow. Im an obsessive DIY guy but this has me stumped. Any advice or past experiences would be appreciated