Thanks again for the recommendations. Taking the overhead shelves or trays out and having to rewire everything is a bee-ahtch, but we want to do it right, so we endure. Regarding the wiring, do you all run separate power and ground leads (wires) to your different components or do you or should you share (or split) a hot wire for different accessories? Right now we have and are planning to run separate hot wires for each accessory (stereo, 12Vdc sockets, amplifier, rear interior cabin light, Ham radio, CB radio). Everything that is not stock is currently connected to a Blue Sea fuse box like this one:
http://bluesea.com/category/81/21/productline/126.
However, with the power (hot) wires and wires for the dual battery gauge and override switch, the entire combined "wire" ends up being quick thick. We have this combined "wire" routed from the Blue Sea fuse box, through the firewall, between the dash and above the plastic heater air duct, and up the A-pillar on the passenger side to the overhead shelf. I would like to make all wiring and connections look neat, (aka Mr. Fancy Pants per the post above), and I haven't found any heat shrink options for this bundled, thick "wire," though I'm sure that there is a good-looking solution out there. Bullet connectors haven't worked well for me. I made very good connections and crimps, but most of the bullet connectors have pulled apart on me, even when I'm very careful when separating the wires.
Right now we have all of the wires bundled using small zip ties. This takes forever to do, but it looks neat and tidy. We used different colored wires for each connection so as to make the installations easier, but it would look better if we could use heat shrinks of some type. Electrical tape is what Toyota used 41 years ago for the wires running up the driver's side A-pillar for the interior light and windshield wiper hot wires, but with the wire bundle being over 1/2" thick, new electrical tape doesn't look very stock.
Running off the Blue Sea fuse box we have the following:
1) 30 amp fuse: 300-watt stereo amplifier (10 gauge wire) (great compact 4-channel unit, by the way
http://www.rockfordfosgate.com/products/product_details.aspx?itemid=120465 )
2) 15 amp fuse: two dual-socket 12Vdc marine outlets (one in the front overhead console and one in the back) 16-gauge wire
3) 10amp fuse: radio 16-gauge wire
4) open for Ham radio (not yet installed) 16-gauge wire
5) open for CB radio (not yet installed) 16-gauge wire
6) open for front auxiliary lights (not yet installed) ? gauge wire
7) open for front fog lights (not yet installed) ? gauge wire
8) open for rear/backup lights (not yet installed) ? gauge wire
What about using quick-disconnect electrical connectors like these?
http://www.mcmaster.com/#standard-electrical-wire-terminals/=jz6bsw
http://www.mcmaster.com/#standard-electrical-wire-terminals/=jz6c9w
They will stay together if you crimp them well enough. 'Any concerns with voltage loss with these?