Honestly the DDM stuff is maybe what I would consider OK for cheap. I've used their ballasts plenty of times for various things, but the bulbs are always off in the output(Every set has had some horrible green or otherwise unsavory tinge to it and they're probably cooking your housings with poorly filtered UV) and the ballasts are slow to ignite/warm up. I have quite a few of the DDM plus canbus ballasts in my spare's box(decent cheapo spares) and while they work on the ram without any harnesses, I would use something better.
The Hylux 2A88 canbus ballast, for example, has a much faster warm up and is definitely running truer to 35watts driving the same morimoto bulbs(Warmer color temp and more output than the DDM stuff in A/B testing). That being said I only tested that ballast on my '17 Challenger so I can't say with certainty that it will work on the Ram's without issues. I still have a few of those I keep for backups or if I need to do a PNP on a vehicle that has decent projectors for friends/family.
If you have quads I would honestly suggest a good LED low beam such as the Xenon depot with the new Phillips LED's or the supernova v.3 LED bulb (Similar Phillips LEDs). In my experience with my truck trying numerous bulbs/bulb types you will get a much better, usable beam pattern with good LED bulbs over H11 HID's and people won't hate you nearly as much with the glare. If you have the projector housings then by all means go HID as it will give you more output, but will not be on par with a true HID projector. In the projectors I would spend the extra cash for the Morimoto harness/ballast/bulb kit and they work pretty damn well in my Challenger projectors (Stepped up to XB55's so more non relay usage) as well as in Ram's I have seen in person with OE projectors.
I finally bit the bullet and ordered a set of quads with D2S 4.0 projectors retrofitted in them from Retroshop myself. If you want decent usable HID's an OK projector is a must and a good projector will make you wonder why you ever used anything else.
