Done, and only cut myself once (the plastic of them centre console has sharp edges!). 20 quid mp3 player with 128 GB sd card in to hold whole library of music in car, nothing seen. I took a short video with sound but I'm not able to upload video files unfortunately. So, I'll have to describe! With rather puny speakers (40watt peak, two of), the sound is a little better than a std car stereo, but would be significantly better with larger speakers, I have to limit the volume significantly. Would I recommend the amplifier, definitely.