Have a quick amp install question

[billm0066]

I have a 2015 SQ5 with the b&o system. I purchased this https://www.amazon.com/Rockford-Fosg...p?ie=UTF8&th=1

I have installed several amps before but have not used hi level inputs previously. It was always an aftermarket radio, or a line out converter hooked up to rear speakers.

Here is a photo of the connectors on the box.



Im guessing I get a connector with four wires coming from it that plugs into audio input. Can someone tell me how to connect the stock subwoofer wires to this? The stock sub has two wires going to it. I know this is a really easy and probably stupid question but I have not done it before.

[billm0066]

I figured it out and it was easy. The plug has four wires, two positive and two ground. You connect the two positive to the white wire going to the factory sub. Two negatives go to the blue wire going to the factory sub.