Polk 6x9 2.7 ohm. To bridge or not to bridge?

[Thisisrandy81]

HU: Kenwood KMR-440u
- 22 watts RMS/50 peak x 4 channels
Speakers: Polk MM691
- 2.7 ohm, 125 watts RMS/300 peak

If I run 1 channel directly (series) to 1 speaker, what are my watts to that speaker?
If I bridge the speaker directly to the radio what will happen?

My objective: get the most performance without buying an amp and without damaging equipment.

If none of these ideas will work please give me some outside opinions as to how I should set this up without spending any more money. Or some low cost amps...?

Also, if I get an amp, do I HAVE to get a full range amp or will any amp work?

[autotoys]

You cannot bridge radio outputs, they are floating grounds.