Using a dual filament type bulb for parking/indicator light in headlight R33

[Neostead2000]

I soon have to pass initial inspection (rego) and they check for functioning parking lights as well as indicators. As I understand it, the R33 in general has 1 indicator light at the front of the bumper, one on the side of the front fender, and 1 parking light inside the edge of the headlight.  I am running an S-Roc Greddy front bumper which came without any indicator facets and I am reluctant to gluing on LED strips or drilling holes.

My other car has a very similar headlight design, but the corner parking light is a dual filament bulb which glows dimly at all times but when you use an indicator, it starts blinking with it more brightly.  Could I take that same setup and apply it to the R33? I could find a socket with 3 wires (two signals and 1 ground), then use the same 21/5w bulb. Then splice the fender indicator signal wire to 1 wire on the socket, splice the other signal wire to the one for the parking light, and connect both ground wires to the third wire on the socket.  Would this work?

[GTSBoy]

What are the visibility (angle) and colour rules for indicators in Bulgaria?

[Neostead2000]

Actually I do not know and cannot find a regulations sheet anywhere. I'm more worried about whether people infront of me would be able to see whether I'm indicating left or right, and I assume not since right now the only indicator is on the side fenders.

[GTSBoy]

Consider an amber LED ring/strip inside the parker light section of the actual headlight housing?

[Neostead2000]

Update on this. I didn't chase the dual filament bulb idea simply because after looking more closely at it, it was way too big to fit inside the parker light section. I also didn't want to cut the housing and add another light source near the parker. So I used the GTR surround CAD file I had designed and slightly modified it to fit a Micra K11 indicator (the one on their fender). It uses a 5 Watt bulb so now the dilemma  was fixing the quickly flashing relay. This was easily remedied by buying a plug-in 3 pin relay which has a  knob to control the pulse, cost me $5. It goes in the place of the factory relay under the steering wheel.

The indicators now all blink properly and even though this Micra indicator is a tad smaller than the GTR one, I find it sits more neatly in my custom surrounds and should be more than enough for tech inspection and letting other see my intentions on the road!