The adapter cable is plug and play. It has a socket that exactly matches the loom side of the Becker harness, and speaker adapters as well. The wires are all properly color coded, so you just match with the radio harness and crimp.

I just attached the front speaker connectors, so the rear fader works as normal. It shouldn't be too hard to tap into the fader switch so that the radio directly controls the rear, but I see no reason to do so. the adapter kit contains no hook up to the factory alarm system, but the radio isn't wired for it either. I just taped off that connector, and done with it.

The menu set up is mindless. As I said, I didn't have English instructions, so how hard can it be? There are three FM bands, and two AM, each with six pushbuttons. Select a band, scan to a station you want to keep, press and hold a button until the face shows the number, and you're done. Just like any other radio. To use the CD, just put a CD into the slot, it's automatic. Same with a thumb drive, just put it into the USB slot and it plays sequentially. There may be options for shuffle play and so on, but I haven't gotten there yet. Haven't tried AUX yet, but I'm sure it's just as intuitive. To mate your phone, you use the phone's bluetooth menu and select the radio. It asks for a pin, and I guessed 0000, so smart.

I think the dial lighting is fine, I could live without the blue light around the volume knob. I'll get used to it. The radio has a remote, which I tossed in the glove box and will never use.

Don't go into this expecting super high fidelity or thumping bass, it's not that kind of radio. Just clean sound to drive by.