I recently purchased this from an authorized Japanese dealer and it's practically unused, having only been temporarily installed in my car (BMW 3 Series 320i F30 with base audio). Since it was a temporary installation, I didn't actually mount it. I only placed it in the trunk (next to the fuse box, which I thought was the safest place for the base audio) to check its operation. Therefore, the screws and screw holes are unused, but there are very slight scuffs on the bottom from being placed in the trunk. I used the included power and subwoofer cables, which have been pre-terminated for installation. I used separately sold cables (MATCH adapter cable PP-PAM88, MATCH PP-EC40) for the other connections, so they are unused. All accessories, warranty, and the dealer's Japanese instruction manual are included. If you use points or coupons, you can get this like-new item at the lowest price, so how about it if you're looking for something a little cheaper? For an additional 25,000 yen, I will include the MATCH adapter cable PP-PAM88, MATCH PP-EC40 (also like new), and a fuse box with power and ground cables for a plug-and-play installation in a BMW. * This is the MATCH UP 6DSP, a 7-channel DSP-integrated 6-channel power amplifier. * It's a new generation processor amplifier that achieves high power and ultra-low power consumption with Class GD operation. It supports multi-channel original audio systems. * The CONTROL terminal has been changed to the SCP terminal. The DIRECTOR connected to the SCP terminal is powered by the UP 6DSP. * The UP 6DSP has 6ch high-level inputs, and by using MEC ANALOG IN, a total of 8ch high-level inputs can be achieved. * The input signals can be mixed up to 4 systems and the levels can be adjusted. Also, the output of the original multi-system can be synthesized into a signal close to full range.