No, but I sort of stopped trying!
Since it's both the door speakers and the rear package shelf speaker, I think it must be the amp.
You have a similar issue?
Debut Radio Show Tues, May 3, 1 p.m. on Hamiltonradio.net The Mechanical Animals
call in for car repair help! 609-503-4058
A recent set--NSFW audio: https://youtu.be/_dcxcZfD6dg
Mangofy your E46!