Where to put radio speakers in my 1952 GMC

[wibas]

I'm installing a reproduction radio in the dash and intend on using the new in dash dual cone front speaker. I would also like to add some speakers in the rear but I do not know where? What about adding an amp. The last time I installed a custom sound system was in the 70's I think. I still listen to the same rock and roll now as then. The only difference is now it comes from an ipod or XM.