Muzonchik - Toyota Corolla, 1.6 L, 2007

I installed a sub with an amplifier today. Mystery sub 250 watts nominal, four- channel amplifier crunch audiox.ru/item_aq_booster_____Crunch_0_3088.html
Called a budget option))) The
sub is connected parallel to the rear speakers.
Plays normally, bass is enough. The immediate plans are to replace the rear standard pancakes. I will connect the new speakers to the remaining 2 channels in the amp)