Hello everyone. This is my first post here, hopefully I've come to the right spot. Normally I would try and do this on my own with trial and error, however, this time I feel like I should get some guidance before I dive in.
So here is my situation. I have a 1983 Ford C-8000 with no factory radio, or dc power outlets. I want to have both! I did not want to have to cut the dash to install a receiver and never thought I would use the radio since I tend to listen to my iPod or Spotify so I came up with a different idea. Basically I wanted to have my amp connected to a Logitech Bluetooth adapter and be able to stream music from my iPad or iPhone to the adapter. I also wanted to add the power inverter so I could have a way to charge things if needed.
Basically I'm wondering how I should go about wiring all of this up?
Can I wire everything to the fuse box and then wire the fuse box to the battery? Should I wire the amp to the battery and then wire the power inverter and adapter to the fuse box? Should I not use the fuse box?
Any help would be greatly appreciated. Below is a photo of what I'm working with.

-------------
People say that when someone says something like that, it's because they're jealous. But it still hurts. It hurts bad.
- Steve Zissou
This is an oft answered situation, you should be able to find existing solutions (if not here, try mp3car.com).
In summary you'll probably want to:-
- take all power from the battery via appropriately sized & fused cable;
- have separate inverter and converter power feeds to audio etc loads;
- have all above feeds switched via relays (unless you turn the loads off manually).
Later you may consider dual batteries depending on usage & demand.
And use the relays to switch via ACC.
-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.