PDC and rear trailer hitch bike carrier

[GearHead]

Hi folks

As mentioned in the thread of "Folding Mirror Retrofit", I am ready to tackle the next mod --- PDC.

I was so sure that I was going to just add the PDC for the rear only that I went ahead and ordered a set. Now my wife has indicated that the factory version looks good and thus giving me second thoughts before starting the installation.

In addition, my wife sometime uses the trailer hitch bike carrier. With the PDC installed, will the distance between the bike carrier and the sensors be too close that will trigger the alarm?

Has anyone experience this before?

Also, another reasons why I originally chose the rear PDC instead of the full PDC kit is the switch bank. With the full kit, a switch set comes complete with ALL buttons (with cover caps) but I ONLY want a switch bank that has 4 buttons. Been searching for that 4 button switch for the past 2 months to no avail.

Any idea who has one or the part number for the 4 button version so that I could order myself?

Thanks in advance