Wanted to share the sub I added incase anyone wants to go the same route. I went with the JL Audio 12” Powered Sub which comes with an amp inside the sub box. I didn’t want to mount a separate amp somewhere. I can also quick disconnect the sub and take the box out, so I went this route. Sub hits good with clean bass. I also added the LC2I PRO which made the install super easy. Tapped Into the OEM sub for signal wire and yes the OEM sub and Aftermarket sub work at once.