I'm confused, it's a 2 channel amp but you say it's powering all your stock speakers fine? So you have 6 total speakers on a 2 channel amp???
Do you have a 50w (peak) X 4 aftermarket headunit? That should be enough for your 4 normal speakers.
What RMS is your subs and what RMS is your amps? I think even if it's underpowered you should still get some output.
Do you have a 50w (peak) X 4 aftermarket headunit? That should be enough for your 4 normal speakers.
What RMS is your subs and what RMS is your amps? I think even if it's underpowered you should still get some output.