I joined the club yesterday. I ordered 3 pairs of Bipolar capacitors from Mouser. 220,330,470. Installed the 330s in the doors as described with no issues. And with my newly repaired subwoofers, I too am very pleased with the results. I may try the 470s. I think the door speakers can do more bass and get a fuller sound. I was running on them exclusively with the shot surrounds on the subwoofers, and they could do a good job at low bass at moderate volumes.