So many freakin' wires!

So i am in the process of getting ready to install a Pioneer AVH4400BH double din head unit. I have the Steering wheel interface and the PAC TATO adapter... I have so many wires! Im super confused with the wires... I know im being vague but has anyone done an install with both the steering wheel adapter and the PAC tato for the JBL system? How serious of an install is this going to be, Im really close to just calling it and taking to Car toys or quality auto and having them install it.

Any insight, tips... Anything that will help me wrap my head around which wire harnesses go where and all that would be greatly appreciated!

 

It's not that bad.... wiring up the SWI is going to be the most confusing...

First suggestion.... go get a soldering iron... this will keep you from having to cut wires shorter if you make a mistake or if you need to add a wire into something that you already connected...

Second, wire up the radio and TATO adaptor and get the radio working first. Once you've got that done, then worry about the SWI. The SWI really is just 3 wires to connect, plus a resistor - figuring out the right resistor is the hardest part IMO