Has anyone added speakers to the existing boom system without adding amps? I have a 2019 Special. My front speakers are stock and sound amazing. My wife can't hear them tho. I am adding Rockford Fosgate Power TMS69 6x9's 4 ohm speakers to the lids. I figured if I wired in the new speakers to the front speakers running in series I would be ok. It might rob my front speakers of power but shouldn't be too bad. Any thoughts? I read somewhere that the eq might be too high also and can ruin the new speakers. Thanks in advance!