So I bought my '05 limited Xfire a few months ago and it already was wired with 10 guage and I had 4 guage wire laying around so I deceided to install that, I still have the 10 guage in as well because I thought it was too much work to take it out. My question is, with both wires how much power should I be able to safely push without setting something on fire? I'm thinking of upgrading to 12" Solobaric L7's so I can have a bit of trunk space again.

Thanks guys!