I have a 2007 Camry Hybrid with JBL & Navi. Are there the RCA connections on the amp under the passenger seat to go to after-market amp? If not, is there anyway I could connect another amp for subs in trunk?
No rca's on amp. Best line-out converter you can get for the price. I currently have it installed with my jbl system and works very well compared to other line-outs even though its a bit pricey.
There are other options, but sound quality that comes out of them are crap imo. Works for many people, im just real picky about sound quality, but the best way to go is to go with an after market headunit.
Easiest way is to splice into the rear speakers since thats where you have the easiest access to the left and right speaker wires. and yes this will give you a 2-channel rca output to go to your sub amp.
i had a LOC with my JBL system for a while. Sounded O.K. The factory amp cuts bass at higher volumes to prevent blowing the factory speakers. So while the music gets louder the bass for the most part wont. I got tired of it and ended up gutting the whole system and starting from scratch.