2005 Series 2 stereo upgrade update!

Plan 1: failure

Kenwood KMM-BT515HD - receiver $159 USD
Focal Performance 100AC - 4-inch speaker* $199 USD

Performance: unacceptable
The Focal speakers are excellent, but 4-inch speakers simple cannot cut.
The speakers are marvelous at lower volumes, and have far better low/mid/high quality. However, at volumes required for enjoying music at highway speeds with the top down they're not up to the task--horrid distortion.

Speaker comparison pictures:
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