Didn't get the polks installed right away.
The regular DB651 speakers come with the adapter ring, but the "slim" version does not. Didn't realize until they arrived. I had to order the rings and wait for them to arrive.
As said above, stuffing the bar enhanced the faults of the stock head unit.
And adding the Polks totally shows off how bad the head unit really is EQed to protect those stock POS speakers.
The Polks really do sound Waaay better up to about 45-50% volume, but keep turning the volume up and I can tell right away that the mids and highs are getting louder but the lows are kept at that same 45-50% output all the way to max volume, and basically get drowned out by the mids and highs the louder it gets.
Not that I doubted everyone's advice that I have read here about the head unit, I just really wanted to hear how bad for myself. Yep, it's pretty crappy.
It really is too bad because the unit does everything else so very well(as for my needs) that I still dont want to replace it.
(starts scouring the interwebs for a deal on the Lc6i... )
I have also been looking into building a sub box to fit under the back seat.
Yet another project, for another day, that I can't afford at the moment.