94 Toyota Pickup stereo question

You don't really have to disconnect the battery /IF/ you have a pretty good clue about what you're doing. But it can not hurt at all.

Myself, I'd just pull both the fuses feeding the radio before messing with it - namely the Accessory switched 'radio' fuse, and where it gets it's constant memory power, probably from either the 'clock' or 'dome light' fuse.

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Bruce, since you should be putting it in with a wiring harness... All the wiring should be done out of the truck.. Sit down at the dinner table and wire it... you won't have to worry about any power at all.. as long as you remember yellow is power, red is accessory, and black is ground, and hook those up properly in the harness there is no damage you can do to anything.. you will just be plugging the completed harness into the stock plug for the raio in the truck, and then into the new deck.. everything is color coded, it's a piece of cake.. Ian

guys you were right. installed it in about 20 minutes. works great. now i'm sitting here wondering which wires if any are supposed to go to the lighter socket. i don't have the factory socket so perhaps it won't work at all but would like to make sure before i close this all back up. the only free wires back there (where the harnesses are) are a grey and grey/red wire which are connected to some sort of white L-shaped plug. is that for the lighter socket?

after looking again at Bruce's earlier post, it would seem that this plug is in fact the factory lighter plug...is there a way to connect this universal lighter socket without the matching plug? or what about the accessory socket?

never mind. i worked it all out. thank you to everyone here who helped me out with these projects -- really appreciate it. happy holidays!