Take the rcas from the amp and connect it to the + and - posts on one of your speakers.
Yes, you can add a subwoofer to a factory Jeep Liberty stereo. This typically involves using a line output converter to connect the subwoofer to the factory head unit's speaker wires, or by using a subwoofer amplifier with a high-level input. Make sure to choose a subwoofer that fits your space and power requirements, and consider upgrading the vehicle's electrical system if needed to support the additional power draw. Professional installation may be recommended for optimal performance and integration.
Unpowered subwoofers take power from the receiver itself whereas a powered subwoofer has its own amplifier. This helps takesome strain off the receiver so powered subwoofers are considered a better option.
NOCan however be powered by a 120/ to 12 volt DC power supply plugged into wall socket. (Ensure the power supply has sufficient current rating to run the subwoofer)
Connect speaker cables to your receiver. Note that the subwoofer in this system is not powered, so you will need an amp that can power the subwoofer too.
consider getting a lower powered amplifier or subwoofer that doesn't strain your cars electrical power.
An amplifier will power your subwoofer so they can work.
Could be the factory amp had more power than the aftermarket unit most are around 45-50 watts or so they clam. But I'm sure these are overrated as well.
A water-powered factory did not create pollution and could only operate near water, but a steam-powered factory did create pollution and could operate anywhere on land
not 100% certain but i dont know of any stereo's that you cant add a subwoofer too you will however need a power amp to drive the sub.
It depends on the power rating of the subwoofer.
It seems like you're using a passive subwoofer. A passive subwoofer doesn't have a power source (an amplifier.) You will need an amplifier for your subwoofer. Let a professional set it up for you.
Most computer speakers with subwoofer have the power going directly to it, so it is needed to get an extension for all the other speakers.