Parasitic Draw - usual suspects?

[Joe]

Well. from my previous post I've been fighting a dead truck for about a week.

Decided this weekend to replace the battery and also had the Alternator fail the regulator test. FIgured between the two I would easily solve the problem. No such luck. Came out today and dead again.

Suspect at this point it has to be parasitic draw. Any thoughts on some of common suspects for this. I do realize it could be just about anything.

I just pulled the fuses tonight for radio and onstar to start the process.

Thanks again all.