To bridge or not to bridge

[stich626]

OK, because my truck will be my daily driver, for awhile and they are easy to break into.. I'm not going to install my good audio equipment.
I have my Ideas on this but want feed back

I'll be running my 1997 kenwood kac744 amp(4 channel 80 watts each)
and my jbl gts180x (2 channels 75 watts each)

I have 6.5 seperates in kicks with tweeters right above the a/c vents at dash ends and 6.5 in front of door and 6 by 9 in rear of doors..

I'll run the kicks on the jbl
and the doors off the kenwood, BUT
should I run the kenwood as a 4 channel and each channel to one speaker
or run the kenwood as a 2 channel (bridged 2 channel 160w each)
and daisy chain the two door speakers..
what set up will give the most head room..

memorys foggy (on meds)
is 2) 4 ohm speakers wired + to + and - to - 4 ohms or 2

and if it's +to- and + to - is 4 ohm. how will the reversed polarity affect the sound,, and will it help or hurt the proformance of the speakers that are sharing the same air space..
thanks..
can't wait to get off these meds they screw with your memory..
thanks for your replies