so my headunit has 2 pair rca outputs, front out and rear/sub out.
my car doesnt have front speakers and i have installed 2 6x9 rear speakers.
i plan to install a 4 channel amp and a sub.
2channels for speakers and will bridge the other two for the sub.
how can i connect them on these rca output from the headunits.
what i have in mind is to connect the front outs to my rear and the rear/sub outs to the sub all through the amp ofcourse. Will i lose bass from the rear speakers if i connect them to front?

 

nope as long as your giving it the signal that those 6*9s and sub can play (set crossovers ) , you're pretty much on the right track.. full range for the 6*9s if they're capable and low pass filter for the sub