radio in 8000 series tractors

Just remove the top of the cab someting like 20 bolts slide off to the side or hand to someone so it doesnt get damaged the space for the speakers and the radio are there you just need to cut out a hole for the radio to fit in the speakers will actully work just fine through the headliner or you can cut holes for them and install new speakers and grills, if memory serves the hole for the speakers is there too just the headliner blocks it. Dont want to tell you what to do but a cheap radio will not work for long in the cab of a tractor either buy one from a tractor dealer, or go to a heavy duty truck dealer(Peterbilt, frightliner, Kenworth) and buy  they are made to be abused, same with the speakers, walmart brand etc give very poor sound quality and wont last with the vibrations and dirt of a farm tractor, the more money spent on speakers, and the actual radio the happier your going to be in the long run, from a sound and performance standpoint.