I need some speaker wiring help. Any stereo guys here?

I installed the speakers in my Fiero seats and I am trying to figure out how best to hook them up. Below is the wiring diagram for the speakers and that is pretty self explanatory. My issue is wiring them to the amp.



I have a cadence 4 channel amp.

-I have 2 front speakers and one rear sub.
-The fronts are wired to channel 1 & 2 and the sub is bridged to 3 & 4.

Should I,

-Splice into the front speaker wires and run them all of channel 1 & 2

or

-Run the fronts to channel 1 & 2 as now and then run separate wires from the headrest speakers to channels 3 & 4 and then splice the negative sub wire to the right rear "-" speaker wire and the"+" sub wire to the "+" left rear speaker wire and set all crossover settings to "Full Range"?

If I do this one the instructions say I need to run a low pass filter inducter on the positive sub speaker wire.....


Thanks for the help!

Wade

Personally, I would try it without the sub at all, adj equalizer as needed, then if not good, add a separate sub amp.....

(signed olde tyme audio budd/et/speaker builder/audio PIA):1st: