scjefe, I just checked my spares and the standard dash does not appear to have a flex circuit. Removing either panel from the dash is about the same. Opening up the panel is should not be required. Removing the panel is about the same for both standard and gauge. The difference is on the gauge dash you also need to disconnect the oil pressure line. There a maybe 'GM' emblem that needs to be removed too. IIRC the light and wiper switches don't have to be removed.

The turn signal lights are a different from the other instrument lights as they don't go thru the light switch. If you look down around the column under the dash you should find the turn signal wire harness and connector. On the turn signal connector there are two pairs of wire one light blue and the other dark blue. These pairs are your turn signals they split and go to the panel and the front and rear turn signals. You should be able to check that you have power there with a test light.

Larry

I don't own a vehicle that isn't old enough to drink.