Adding subwoofer to 08 Hybrid JBL non-SATNAV
New here, first post.
Has anyone had any luck adding a sub to the stock JBL non-NAV system in an 08 Hybrid? I just picked up an absolute gem that's in showroom condition and I love the stock system the way it's integrated into the rest of the car (steering wheel controls, speed sensitive audio levels, etc) but it is lacking in anything below the 60Hz range.
I already have a sub/amp and where I want to put it, I'm just wondering if there are phono jacks on the stock radio for the audio? Or anything I could use that wouldn't involve one of those speaker wire adapters?
Thanks in advance,