LA-LA, thanks for the posts about DLRs. Here we call them DRLs, Daytime Running Lights.
That is an interesting location for the Toyota mounted lights, on the far outside of the bumper. I'll have to look at the Scion iQ to see if the location or shape of the bumper is the same. It appears in your photo that there is a vertical, flat area where those are mounted.
Are your non-Toyota lights wired into the same harness as the Toyota lights would be?
Yes, the position and the vertical LEDs on the iQ are an USP. The bumper gets a hole and the unit will be fixed. It is an extra plastic"house" for the lights - they must be painted in the color of the car.
My DLRs (two years ago there was no Toyota solution) are proofed and signed with the EU-certification-mark [ECE R87] (means they are allowd to use on passenger cars). The wiring (harness?) is linked to the batterie and one line to the parking/side light - so the sidelight/beam is on the DLRs are dimming / or out.