Replacing side marker light

[RAH]

one of my side marker lights was not working - it was half on, half off.
I removed the old light, and I have the new light purchased.
What do I do now? my questions are:
(1) do I put the silver base on first? and if I do, how will I get the wires short enough so that I can snap with orange plastic part in, without excess wires getting in the way?
(2) what sealant should I use? the old light had a lot of grey sealant in there. My choices are (based on what is in my closet) Acrylic-R. Or Adseal Grey. I have a whole tube of it unopened, seems like a shame to open it for this small project.
Any other recommendations before I try putting this back together tomorrow?

[RAH]

after reading "Sealant Summary" maybe I will use Acryl-R.

28430W – 16 oz can of Acryl-R Seam Sealer and Applicator Head. Use to seal all metal to metal seams, including but not limited to, segment seams, sides and bottom of riveted frame windows, compartment door frames, marker lights, and tail lights; any where a fine bead of gray sealant is required.

Any advice on how to get the wires to fit would be greatly appreciated! Thanks

[RAH]

I called Airstream customer service for advice on this. They helpfully said "We have a PDF of a How-To Guide for that if you want us to email it to you". Gotta love the customer service from Jackson Center. The how-to guide was helpful and the new light is installed.