Originally Posted by lookin
Hello, I am looking to put a powered tube in my 2008 HHR (factory upgraded Pioneer system w/ sub) and I have seen posts elswhere that say you can tap into the low level outputs after the factory crossover. The factory system does have an underpowered sub. Would it be best to use the sub outputs from the crossover to supply the tube?
Yes, you can connect to the factory subwoofer outputs. Just keep in mind you may run into an impedance issue with the factory amplifier. Installing a LOC will take care of this issue. Look to use the PAC SNI-45T or one with like features.