mkmania

Hi, I'm looking for advice on how to use my amp. Due to a variety of factors of lack of space in car for amp and really good deals on deck /speakers, I ended up with the system listed below. I currently have two options:
(1) use the amp to deliver 50W RMS to my four speakers.
(2) bridge the amp and to deliver 150W RMS to front speakers and use deck power to deliver 22W RMS to the rear speakers

What would you do? How would you set it up?

System Details:
Head unit: Kenwood DDX6703S - 22W RMS deck power
Front Speakers: Alpine SPR-60C Type R 6.5" Components (8 to 110W RMS)
Rear Speakers: Alpine SPS-610C Type S 6.5" Components (2 to 80W RMS)
Amp: Kenwood KAC-M3004
- 50W RMS x 4 channels at 4 ohms
- 150W RMS x 2 channels at 4 ohms bridged

Any opinions, suggestions, advice will be much appreciated!

Thank you