Ok, so I have decided to install an amp+sub, and headrest screens in my max. I have a few questions about some products, mostly dealing with power and such. First off I bought a Kinetik KHC1400R to replace my stock battery. From what I gather this should supply enough voltage for my screens, sub+amp, and nav head unit. I also have ordered a grounding+big 3 kit. I will be using a JL Audio HD750/1 amp with a 12W7, and a Carshowelectronics custom dual dvd headrest kit. My main concerns are: 1) will the battery be enough to power said components all at once? 2) will this require a higher amperage alternator, or should I use a cap for the amp? 3) are there any other things I should be considering?

 

Bump

 

1. Don't run all of this without the car running. The battery will be fine.
2a. The alternator should be fine. The amp will pull about 65 amps, and the screens maybe 10. That is enough room to where you should be ok. If you are going to really crank the bass, and show everything off, then turn off your AC and headlights (if they are on).
2b. Don't ever buy a cap. They hurt your car more than they help.
3. Depends on if you are installing it or having a shop do it.

 

You will be fine without an upgraded alrernator or cap. I'm running a Boston Acoustics amp rated at 800 watts rms with no issues at all. It has an 80 amp fuse, & im running 4ga OFC wire to it. Electrical is stock on my 2010.