Hello, folks. Brief intro, I’ve just bought a 2008ish C220 CDi. I’m usually an Audi person, but I needed a car for commuting, wanted, but haven’t owned a Mercedes before, and really liked the C-class. Although I’ll probably head for an E- in a year or so... It has a small niggle or two. First. As per the title. Using cruise control, when speed is reduced there is a crackling breaking through on the audio. A reduction of 1-5 mph gives a short crackle, 10mph or moregives a slightly longer crackle. Other than that, it works fine. There is no noise when setting the speed initially, accelerating, or re-engaging the cruise control after disconnecting (E.g. after braking) I’m using iPhone connected by a long aux input. I am going to be trying the KS Myjack2 for a bit more liberation. I’d like to install a better placed aux socket. The audio system is not bad, but the lack of Bluetooth streaming is a little surprising/disappointing. (A20 system, I think) I’m wondering if the noise is to do with the long, unshielded aux cable that I’m using for the moment. The other niggles or things to look at will be- Audio system. What upgrades/swaps are there that give an integrated Bluetooth music streaming? Rear parking sensors not working/detecting. Ecu tweak? Worth it?