69 shorty fuse for dash lights
On a 69 there is a gray wire that comes off the fuse block and then branches off about 7 different ways to accommodate all thirteen dash instrument lights. Last year I added an additional 3 gauge (oil,temp,volts) panel which supports 3 lights. I tapped into the gray wire to light these and it worked just fine. Over winter I removed the dash to replace 4 burnt out dash lights. Now for the first time I had all the lights (plus the 3 add ons) working. It lasted all about 2-3 minutes-----all went dark. Okay blew the little 4a shorty fuse, replaced and tried again. This time it lasted a little longer. Okay I know I am overloading the circuit, my question is it possible to get a bigger 4a fuse so it won't burn out. If that is even possible then will I experience other problems like burnt or melted wires.
If this is not possible then can someone suggest another wire I can tap into to run these other 3 gauge lights. I was thinking about tapping the side marker lights which come on just like the dash lights, however is this even an option. I would love any input, for electrical is not a strong point of mine.