Will this kit do the job or should a better kit be used? -
4 gauge amplifier installation kit
"At KnuKonceptz, we do not use "watts" to rate our amp kits. This is a very inaccurate method to determine what the proper gauge wire required for your amp installation. There are many amp manufactures and not all of them represent the output of their product accurately. Please refer to your amplifier's fuse rating, this is a number a manufacture can not fake, well they could but it would put their product in harms way! Add up the fuses on the end of your amp (two 30A fuses = 60A total draw) If this number is under 80A, this kit will fit your application. If over 80A, a larger gauge wire would be required or use our Kolossus Flex 4 gauge amp installation kit. For more information, see our Amp Kit Review."
The number for for the P900.4 is 75A, which is under 80A.