StressPuppy...
congradulations on a great purchase. You might want to start looking into the birfields. Unless the previous owner did them.
Unfortunately the stereo is a place of frustation for a great deal of owners.
Another place to check out is:
www.ih8mud.com
That site is dedicated to Landcruisers and under the 80's tech section, there are a bunch of FAQs.
Good luck, and once again congradulations
robb