We'll start by confessing I made a stupid move. It's freezing here and I was trying to replace my stereo with the heat on. Wiring up the new one I had all the wire exposed and crossed a couple of them. Couple sparks popped and the dome light went out. I checked the Acc. fuse which was still good (swapped if for another known working one and still had the issue).

Since it's not the fuse, but seems to be effecting all the components on the Acc. fuse line, is there another fuse somewhere? What would be the next recommended step in troubleshooting this?

Thanks!

 

I don't have the schematic on me but, I think the Clock, Radio and Dome take power from circuit upstream of ANY switch. Upstream of "accessories" circuit meaning before the ACC contacts of Ign switch.
That's why dome comes on even without key in ignition.
Radio and Clock also need UNswitched power to maintain memory.
Time to break out the multi-meter (see signature)

 

You don't say what machine you have, but on 4Runners ACC and DOME are two different fuses.The DOME fuse is in the engine bay fuse box, ACC is by driver's knee. I suspect Tacos are similar. So check your DOME fuse.

Please, ALWAYS give year and model when asking for electrical help or put your info in your sig, as most of us do.

 

2002 4Runner.

Thanks, I'll check my dome when I get home.