Today was THE day when I finalized the install.
Measure 10 times and drill once (the top edge of the tape defines the middle line of the URPAS sensor holes):
The first hole ready, I was so worried about chipping the paint, but nope it all worked fine.
This is the final product, notice the harness goes into the trunk sharing the same rubber grommet as the right side outer taillight harness (not finalized in the picture). It was not easy to squeeze the 6 extra wires trough the same tight grommet but with patience (about 1 h) it worked.
And here it is WORKING in a ’97 Cadillac Seville STS, never meant to be yet it is, and it was not that difficult.
The first flash is when I shifted in reverse (is the bulb test sequence) then you see as I am approaching the vehicle parked behind the LEDs turning on in the sequence 1 amber LED, 2 amber LEDs, all LEDs on, all LEDs on flashing. The corresponding chime is heard in the background 1 chime at first amber LED on then continuous chime when all 3 LEDs are on.
Also in the process I accidentally drove a ‘03 bi-turbo V12 CL 65 AMG (>600HP!!!!). That is really a sweet ride and I notice the URPAS sensors are identical with the ones in my Cadillac.