What items will i need to purchase if i want to add a subwoofer with my stock radio?

Question

I have an Infinty stock radio and infintiy speakers in my truck. I just purchased a subwoofer with an inclosed box. What else will i need to buy so that the sub will work with the other components

Answer 1

you need an amplifier that can power up the subs. and you might need an aftermarket head unit

Answer 2

if your planning on use the stock radio to power the sub you will need to get a line converter. it is a small connector that goes in line to your rear (or front) speakers. it has a left and right + and - on one side and a set of RCA's on the other. simply wire the speaker wires to the corrisponding wires to match. run an RCA wire from this converter to your amp, then the amp to the sub. the converter does not effect the impedance of the speakers you wired it into, it simply is a signal transfer. they are not expensive at all.