Gramps whining?... never!... jk... that's install pure and simple... you are something else... lol... I've never seen someone come up with so many excuses not to do anything but yet start so many discussions over what to do next... I give up... idk if anything would work for you.yeah i've had all that in other cars (look at my gallery u see 2 memphis amps on amp wall with xover) i also had a little alt whine and now i have none at all and don't wanta spent $200 to gain 50-100rms and have any whine and lite dimming..
It's worth the effort to amplify the highs