I wouldn't even waste my time trying to use a cap. They are proven to actually cause more harm than good over time. There are massive threads over at DIY mobile as well as caraudio having discussions on them. IMO if you need a cap it's time to do some electrical upgrades such as the BIG 3 and possibly a second battery. The stock system in the Z is able to handle a lot including most audio systems. One of my 3 year customers is running dual amps (5 channel audios and 2 channel focal) as well as a second battery with no issues.
|