Radio/acc Stays on with the key out

[goldenreed]

I'm having trouble on my 99 V70. The ignition appears to frequently stay in the accessory position even when the key is moved to the off and withdrawn. After a few dead batteries, I now leave the radio on all the time.
A few on/offs will eventually catch the ignition switch in the true off position. I never have any trouble getting the key out but I can sometimes spin the key all the way around in the cylinder.

Is it likely that I just need to just replace the electrical part of ignition switch itself -45$ of fcpgroton (which looks like one can do without boring out the bolts and replacing the entire cylinder) or is it more complicated and require complete dissassembly of the steering column.

[jblackburn]

Sounds like just the electrical portion of the ignition switch to me. That's where I'd start, anyway.