sniper wiring RF and temp sender.

You can "make it larger" by bunching and get it over the subject cable
The original braided cable just ran next to the wires and was enclosed with foil. Since I have made the splices, but not enclosed in foil yet...do you think I will be ok with splicing the home made stripped wire next to the wires, all bundles with foil? Or is it recommended to do the "bunch" method and wrap with foil? Is the HVAC foil tape better than household aluminum foil? The original is very thin 'crepe' style....almost like a wrapping paper or a pinata streamers...to paint a picture.

Thanks all for replying. I know this is tick tacky crap but Id like to do it once.