Combining channels on HU to power single set of speakers?

[UCbizerkeley 10+ year member]

OK, when everything is cut and dry in car audio, I get it - mono amps, dual or 4 ohm subs, dual channel amps going to 2 sets of speakers. When it comes to figuring stuff out myself, being inept at anything electrical, I fall flat on my face.

That said, here is my question -

Head Unit is an Alpine 9833 (oldie but goodie //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif). I want to use the HU's amp to power solely my real coaxial speakers, as they are just rear fill. HU is wired to battery. The amp does 26rms x 4 channels. How/am I able bridge those channels to send ~50 RMS to the rear speakers (2 channels)? Is it as simple as wiring the front negatives with the rear negatives, and the front positives with the rear positives? Everything, to my knowledge, is 4ohm.

Thanks in advance,

//content.invisioncic.com/y282845/emoticons/banghead.gif.8606515f668c74f6de0281deb475b6fd.gif

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