The tweeters on the door and the mids in the dash were replaced and sound just-ok and not as bright as I'd like. So I bought coax 6.5's for the front doors a test and their integrated tweets have no highs which is what started the journey that something was cutting the signal to things.

Does the amp have an integrated crossover or do I still have a DSP or other component controlling that (and don't realize it)?

(Just edited my above post; was having a problem with photos and it was cut off)