mschiavoni said:yea I haven't had any power problems yet. only when all interior lights, headlights, etc. are on do I notice anything, and that's not very often. but yea I call it an RCA box, but I spliced it into the rear speaker wires to create the pre-amp, and from there it's a regular install. works real well, and sounds real good too!
If you're getting dimming, you could look into installing a capacitor. But if it's not a problem, then I wouldn't worry. That's awesome though, I'm so psyched to do this install!