Do I need power distribution after installing (Amp, LED's, powered subs) multiple powered upgrades?

I just finished installing a 2015 OEM Navigation deck in my 2014 Tacoma. I also installed and Alpine power pack and all new speakers.

I have the Alpine amp direct wired to the battery for power, and I also have an over head LED strip light direct wired to the battery for the back inside the topper shell.

I am planning to add a powered sub or two under the front seats next.

Assuming the sub needs a direct wire to the battery also, that would make (3-4) wire posts coming off the battery for accessories. How many of the can we safely have and at what point do I need to add a power distribution box? If I need one any recommendations for a simple setup like mine? Thanks for any quality worthwhile advisement !