Hello Moonbeamromance,
No, not really the wrong thread. If you can, try adding the capictors to the door speakers as posted in the first thread. It can make a hugh difference in the sound, takes the heavy mirror shaking base from the door speakers and redirects it to the subs behind you. Cleans up the sound in the doors and you get a back massage with the right kind of music. A lot cheaper than a new head unit.
Hope this helps.