Hey guys, so I've got a 2007 PT Cruiser and just took out the factory HU and replaced it with the JVC KDHDR60. Sound is much better with the factory speakers, but I'm still not thrilled. Front and rear doors are both 6.5" so just wanted to get some opinions from you all. I'd really appreciate it alot and I'll gladly post a followup after i've got them installed. I've done some research and i'm considering the Infinity Kapp 652.9, Polk db651s, Infinity 6032si, and Alpine SPS-600c. I'm open to other suggestions as well. Thanks!