I'm looking to hook up another 2 subs. They and plug in with RCA so I was wondering if there is a open RCA I can put a 1-to-2 on and hook both subs up, or is there something already plugged into the RCA. If so is there anyway I can still hook 2 more subs up?

 

the stock head unit has no pre-outs. you'd have to tap off the speaker output with a line converter, but the quality is terrible.

 

so any other way i can do it and get some quality?

 

you can use the line converter and get very good sound. especially if you're just using it for subs.