[Nuck Chorris]

One-Dash lights out, blown fuse, replaced fuse, fuse blew again
Two- Signal lights stay solid, replaced relay, no change, hazards work, all bulbs light up.
Three-When I depress the brakes sometimes my aftermarket radio, mounted where the glove box used to be, turns off and then turns back on after a second. Thought it was funny at first, but it's beginning to irritate.

I got a 2 dollar volt meter thing. I got an original 69 Pontiac Service Manual. Do I need any other stuff?
Any thoughts about where I should begin?

[Nuck Chorris]

Update: I found a diagram that showed that what I was replacing was not the turn signal relay, but was the hazard relay. Fixed the error. Signals are good.
So just working on the Dash Lights and the Radio cutting out every other time I brake problem.

[beertracker]

So just working on the Dash Lights and the Radio cutting out every other time I brake problem.[/QUOTE]

Regarding the radio cutting out problem it sounds like the voltage is dropping when you press & hold the brake pedal. You should be able to verify this with your volt meter. I don't know where you wired the radio to 12V (fuse panel or old radio wire) but try wiring the radio directly to the battery + post as a temporary test.

As far as dash lights I try to track the dash light wire back to the fuse panel to find out where it is powered from. Make sure you have a good ground for the dash lights. If you find any connectors in the current path make sure they are not oxidized. Some times you can find intermittent connections by flexing wires back and forth.

Good luck,
bt