Hi I have a 03 TL

I hooked up a aftermarket deck and sub but I want to hook up my factory sub also.

Does anyone know how to do this?

I tried searching the forum for a thread like this because I remembered seeing one a while back but I couldnt find it.

Thanks for the help!

 

Do not run both subs together.

Pull the factory sub out, let the sub in the trunk play through to the cabin through the hole. Also, cover up the hole with black grille cloth or something acoustically transparent, because white light shines through the hole from the brake light bulb at night.