[pfofit]

Here's a couple diagrams from an 2000 something intrigue.
The first is rear lights and the second is front lights and the third is the some of the BCM signals that pertain to the lights in question. The rears are directly controlled through the signal switch or the hazards but the bcm contols the front signal lights

I'm not sure which lights you want to blink, the white cornering lamps that come on steady with signaling or the side maker lights which are parking lights.

Note from the diagram that the front signal lamps are controlled from the BCM which appears to be a relay contact from diagram three, but it could be an electronic switch like a mosfet scr etc. Either way, then the bcm may be stressed if trying to feed too much current and BCM's are expensive. Although one would think that it should be designed to account for a short but who knows..

The cornering lights draw a lot of current compared to the dinky marking lights.

Another problem is for the marker(running) lights is that they should be on at night all the times, so interfacing them may be an issue. Keeping them on at night but flashing when signaling.

Cornering lights are simple, from the right side lights of the second diagram, perhaps a small 12V relay for each side mounted near the lamp assembly that is controlled from the blinking signal light wire "D"( essentially in parallel with the turn signal lamp) and the normally open relay contact in series with the power wire "K" going to the cornering light

This would result in the cornering blinking in unison with the true signal lights and is not an issue with the BCM output as the relay typically draws milli-amps and the light still uses its original power source .

Which light do you want to blink?
cheers.