Any suggestions on merging output from factory car stereo to get mono input for amp?
So, I got a sub for my car, amp, etc etc. Started reading through all the install stuff. I still have the factory head unit, and was planning to tap the rear speaker lines to get input for the amp. But...
I want to run the amp in bridged mode, which means I need the same signal coming through both leads into the amp. So, I need to transform stereo into mono. Apparently, if I just hook the two leads together, that results in bad things happening to the head unit.
Have seen stuff on active crossovers, but not much detail. Anybody else ever dealt with this? Note: Sub etc are name brand, but whole set-up was $200 including install kit, so any solution needs to be relatively inexpensive.