I'm getting ready to hook up an amp I just bought for my toyota tundra. The stock system comes with a small amplifier for the stock speakers. I'm gonna hook up a sony 2150gsx amp for 2 JL10"wOs.
My question is if I tap into the rear speaker wires (power/ground) will the stock amp affect the performance of the Sony amp? Keep in mind the stock amp is fairly small since the paper stock speakers are only 15-20w.