Anyone out there that's built under seat box for 03 GMC Sierra.

[Dcferguson98]

Hey guys, I know this is probably a dumb question that will never get answered but worth a try... So I have an extended cab 03 GMC Sierra and I was wondering if there's anyone out there that has built a ported box to go under the back seat with 2 10in Rockford fosgate p3's. If you have, it would be awesome if you contacted me because I have a few questions, thanks!! [emoji16]

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[ODougbo]

I have a custom box (vented) for a Rockford P8. It was in a 2003 Silverado.
Have some of the P8 subs also; new - old stock.