Originally Posted by Quan Raymond

I have an Audi A4 B9 with the regular audio system (not B&O) and 4 ohms (single voice coil) oem subwoofer. Bought a Kicker CompC 44CWCD104 which has dual 4 ohm voice coils. Don't know if I can replace the oem subwoofer with this one?

Well, after reading through posts in this thread, I think I can't do a direct replacement. I might need to get an amp instead since I need to pay for return shipping on the subwoofer I purchased online . My question is, can I connect the existing "subwoofer wire" (previously connected to the oem subwoofer) directly to the amp input? or do I need to get the audio out (RCA) from the Audi system audio and connect that to the amp input? The later will involve the disassembling the car audio system .

Thanks for all help and advices.

Originally Posted by Bobby Kinstle

in your case use the SVC version of the CompC10
https://www.kicker.com/50CWCS104

Originally Posted by Quan Raymond

Do you think if it will be a better option/performance to keep the dual coil 44CWCD104, and buy a subwoofer amp (Planet Audio MB600.2D, for example)? With the addition of a subwoofer amp, do we just connect the existing subwoofer wires directly to the amp? Thanks.